{"title":"GLP-1 Peptide Impurity","description":"\u003cp\u003eResearch-grade peptide impurities of GLP-1 receptor agonists for impurity identification, HPLC\/LC-MS method development and quality-control research. Each impurity is ≥95% (HPLC) and listed with its molecular formula and molecular weight.\u003c\/p\u003e\u003cp\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/p\u003e","products":[{"product_id":"tirzepatide-gln24q24-deamidation-of-impurities-biofargo","title":"Tirzepatide GLN24 (Q24) Deamidation Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eTirzepatide GLN24 deamidation impurity is a high-purity impurity reference standard for pharmaceutical quality control and analytical testing of Tirzepatide. Deamidation at glutamine position 24 can occur during storage or accelerated stress conditions and may impact peptide stability and analytical profile. This reference standard is essential for monitoring degradation pathways by HPLC and LC-MS, ensuring batch-to-batch consistency of Tirzepatide drug substance and drug product.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 90%;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eBF-Q24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eC225H347N47O69\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4814.51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eGLN24 deamidation variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":44905276178613,"sku":"BF-GLN24","price":511.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/1_8.jpg?v=1733987731"},{"product_id":"tirzepatide-gln19q19-deamidation-of-impurities-biofargo","title":"Tirzepatide GLN19 (Q19) Deamidation Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eTirzepatide GLN19 deamidation impurity is a high-purity impurity reference standard used for impurity profiling, analytical method development, and quality control of Tirzepatide. Deamidation at glutamine residue 19 is a well-characterized degradation pathway in peptide drug substances that can be monitored by HPLC and LC-MS. This reference standard supports accurate detection and quantification of deamidated species, ensuring product consistency and compliance with regulatory expectations throughout manufacturing and stability programs.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 90%;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eBF-Q19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eC225H347N47O69\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4814.51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eGLN19 deamidation variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":44905285451957,"sku":"BF-GLN19","price":511.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/1_8_a247e046-3a45-481b-aaac-9de305f225b0.jpg?v=1733989687"},{"product_id":"tirzepatide-l-isoasp15-impurity-biofargo","title":"Tirzepatide L-isoAsp15 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eTirzepatide L-isoAsp15 impurity is a high-purity impurity reference standard used for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide, a GLP-1\/GIP dual receptor agonist. This product is part of Biofargo's Tirzepatide Impurity Reference Standards portfolio. Isoaspartate formation at position 15 is a well-documented degradation pathway in peptide drugs that may affect structural integrity and analytical characterization. This reference standard enables accurate identification and quantification of isoAsp-related impurities during manufacturing, stability studies, and batch release testing by HPLC and LC-MS.\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 90%;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eBF-Asp15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eL-isoAsp15 variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/MSDS_-_L-Iso_ASP15_Tirzepatide.pdf?v=1774851401\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":44905297477813,"sku":"BF-L-Asp15","price":511.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/1_8_8c5f841f-43d0-424a-a236-8a5a4a0f361d.jpg?v=1733990617"},{"product_id":"tirzepatide-c-terminal-deamidation-of-impurities-biofargo","title":"Tirzepatide C-terminal deamidation of impurities","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003ch3\u003eBackground Introduction\u003c\/h3\u003e\n\u003cp\u003eThis Tirzepatide impurity reference standard is part of Biofargo's comprehensive line of Tirzepatide Impurity Reference Standards, designed for pharmaceutical quality control. During drug manufacturing, various impurities may be generated, and these reference substances are essential for identifying and quantifying the structure and content of each impurity in the final product.\u003c\/p\u003e\n\u003cp\u003eTirzepatide, a groundbreaking dual agonist of the glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptors, has set a new standard in the treatment of type 2 diabetes (T2DM) and obesity. As one of the most effective GLP-1 receptor agonists (GLP-1RAs), tirzepatide has demonstrated superior efficacy in reducing HbA1c levels (-2.10%) and fasting plasma glucose concentrations (-3.12 mmol\/L), offering unmatched glycemic control. It also provides significant benefits in weight management, with an average reduction of -8.47 kg, making it a powerful tool for addressing the \"\"twin epidemics\"\" of diabetes and obesity. Approved by the FDA under the brand name Mounjaro, tirzepatide uses innovative acylation technology to extend its half-life, allowing for once-weekly subcutaneous injections.\u003c\/p\u003e\n\u003cp\u003eWhile it delivers substantial improvements in glycemic and metabolic outcomes, gastrointestinal side effects such as nausea, vomiting, and diarrhea, particularly at high doses, remain important considerations. Tirzepatide’s remarkable efficacy and safety profile have made it a frontrunner among incretin-based therapies, offering transformative benefits in the management of cardiometabolic disorders. This novel therapy highlights the evolving potential of GLP-1RAs and dual incretin receptor agonists in improving the lives of individuals with T2DM and related conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable border=\"1\" style=\"height: 180px; width: 90%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eAPI CATEGORY\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eAPPEARANCE\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eOff-White lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eCAT NUMBER\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eBF-TC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eCAS NUMBER\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003ePARENT COMPOUND CAS\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eIUPAC NAME\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eH-Tyr-Aib-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Ile-Aib-Leu-Asp-Lys-Ile-Ala-Gln-Lys(X)-Ala-Phe-Val-Gln-Trp-Leu-Ile-Ala-Gly-Gly-Pro-Ser-Ser-Gly-Ala-Pro-Pro-Pro-Ser-OH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eMOLECULAR FORMULA\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eC225H347N47O69\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eMOLECULAR WEIGHT\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003e4814.51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eSOLUBILITY\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003e30% Acetonitrile in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eSTORAGE CONDITION\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003e-20±5°C protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eSYNONYMS\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 30px; text-align: center; vertical-align: middle;\"\u003eNA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":44905303015605,"sku":"BF-TC","price":511.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/1_8_627c2f26-0e3d-4af2-9262-09bd0b2ed0cb.jpg?v=1733991096"},{"product_id":"tirzepatide-l-isoasp9-impurity-biofargo","title":"Tirzepatide L-isoAsp9 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eTirzepatide L-isoAsp9 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. Isoaspartate formation at position 9 represents a common post-translational degradation modification in peptide-based drug substances. This reference material supports accurate impurity profiling, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 90%;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eBF-Asp9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eL-isoAsp9 variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eApplications\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-Asp9_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":44905319137461,"sku":"BF-Asp9","price":511.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/1_8_40b9b4e8-d72c-4c7e-86ae-7eac06c84ebd.jpg?v=1733992392"},{"product_id":"tirzepatide-d-ser32s32-racemized-impurity-biofargo","title":"Tirzepatide D-Ser32 (S32 Racemized) Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eTirzepatide D-Ser32 racemized impurity is a high-purity impurity reference standard used for impurity analysis, method development, and quality control of Tirzepatide. Racemization of amino acid residues during peptide synthesis is a critical quality concern that can affect biological activity and analytical characterization. This reference standard supports detection of stereochemical variants by chiral HPLC and LC-MS, ensuring the structural integrity and consistency of Tirzepatide during production, storage, and regulatory evaluation.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable border=\"1\" style=\"border-collapse: collapse; width: 90%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eBF-S32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eD-Ser32 variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-S32_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":44905336144053,"sku":"BF-S32","price":511.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/1_8_dfb71ef9-50be-4f5f-8445-97a48c3b6b3d.jpg?v=1733993525"},{"product_id":"tirzepatide-ile12nva-nva-ile-substituents-biofargo","title":"Tirzepatide ILE12NVA (NVA-ILE) Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eTirzepatide ILE12NVA (NVA-ILE) impurity is a high-purity impurity reference standard used for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. This substitution impurity involves an amino acid variation at position 12 and is critical for evaluating sequence fidelity during solid-phase peptide synthesis. This reference standard enables precise identification and quantification of sequence-related impurities by HPLC and LC-MS in manufacturing and quality assessment workflows.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 90%;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eBF-ILE12NVA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eC224H346N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4799.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eILE12 substitution impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":44905435660469,"sku":"BF-ILE12","price":511.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/1_8_50eff2f6-5b01-44da-88eb-75f144859acd.jpg?v=1733994412"},{"product_id":"semaglutide-d-his1-impurity-reference-standard-biofargo","title":"Semaglutide D-His1 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eSemaglutide D-His1 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the N-terminal L-histidine at position 1 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, chiral purity assessment, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 90%;\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eBF-SMG-D-His1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e[D-His1]Semaglutide; D-His1 racemized variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-His1_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415858995381,"sku":"BF-SMG-D-His1","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-tyr1-impurity-reference-standard-biofargo","title":"Tirzepatide D-Tyr1 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Tyr1 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-tyrosine at position 1 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Tyr1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Tyr1]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Tyr1_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901036725,"sku":"BF-TZP-D-Tyr1","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"semaglutide-d-glu3-impurity-reference-standard-biofargo","title":"Semaglutide D-Glu3 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Glu3 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-glutamic acid at position 3 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Glu3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Glu3]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Glu3_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901069493,"sku":"BF-SMG-D-Glu3","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-glu3-impurity-reference-standard-biofargo","title":"Tirzepatide D-Glu3 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Glu3 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-glutamic acid at position 3 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Glu3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Glu3]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Glu3_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901102261,"sku":"BF-TZP-D-Glu3","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-tyr1-impurity-biofargo","title":"[D-Tyr1]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Tyr1-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-tyrosine at position 1 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Tyr1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Tyr1]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Tyr1_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901135029,"sku":"BF-RTR-D-Tyr1","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-thr5-impurity-reference-standard-biofargo","title":"Semaglutide D-Thr5 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Thr5 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-threonine at position 5 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Thr5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Thr5]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Thr5_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901167797,"sku":"BF-SMG-D-Thr5","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-thr5-impurity-reference-standard-biofargo","title":"Tirzepatide D-Thr5 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Thr5 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-threonine at position 5 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Thr5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Thr5]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Thr5_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901233333,"sku":"BF-TZP-D-Thr5","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-gln3-impurity-biofargo","title":"[D-Gln3]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Gln3-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-glutamine at position 3 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Gln3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Gln3]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Gln3_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901266101,"sku":"BF-RTR-D-Gln3","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-allo-thr5-impurity-reference-standard-biofargo","title":"Semaglutide D-Allo-Thr5 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Allo-Thr5 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the threonine at position 5 is replaced by its D-allo diastereomer, a stereoisomeric impurity associated with racemization during solid-phase peptide synthesis. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Allo-Thr5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Allo-Thr5]Semaglutide; Stereoisomer (D-allo) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Allo-Thr5_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901298869,"sku":"BF-SMG-D-Allo-Thr5","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-phe6-impurity-reference-standard-biofargo","title":"Tirzepatide D-Phe6 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Phe6 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-phenylalanine at position 6 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Phe6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Phe6]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Phe6_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901331637,"sku":"BF-TZP-D-Phe6","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-thr5-impurity-biofargo","title":"[D-Thr5]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Thr5-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-threonine at position 5 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Thr5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Thr5]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Thr5_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415901364405,"sku":"BF-RTR-D-Thr5","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-phe6-impurity-reference-standard-biofargo","title":"Semaglutide D-Phe6 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Phe6 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-phenylalanine at position 6 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Phe6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Phe6]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Phe6_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902183605,"sku":"BF-SMG-D-Phe6","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-thr7-impurity-reference-standard-biofargo","title":"Tirzepatide D-Thr7 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Thr7 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-threonine at position 7 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Thr7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Thr7]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Thr7_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902216373,"sku":"BF-TZP-D-Thr7","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-phe6-impurity-biofargo","title":"[D-Phe6]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Phe6-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-phenylalanine at position 6 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Phe6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Phe6]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Phe6_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902249141,"sku":"BF-RTR-D-Phe6","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-allo-thr7-impurity-reference-standard-biofargo","title":"Semaglutide D-Allo-Thr7 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Allo-Thr7 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the threonine at position 7 is replaced by its D-allo diastereomer, a stereoisomeric impurity associated with racemization during solid-phase peptide synthesis. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Allo-Thr7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Allo-Thr7]Semaglutide; Stereoisomer (D-allo) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Allo-Thr7_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902281909,"sku":"BF-SMG-D-Allo-Thr7","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-ser8-impurity-reference-standard-biofargo","title":"Tirzepatide D-Ser8 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Ser8 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-serine at position 8 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Ser8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Ser8]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Ser8_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902314677,"sku":"BF-TZP-D-Ser8","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-thr7-impurity-biofargo","title":"[D-Thr7]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Thr7-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-threonine at position 7 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Thr7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Thr7]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Thr7_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902347445,"sku":"BF-RTR-D-Thr7","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-thr7-impurity-reference-standard-biofargo","title":"Semaglutide D-Thr7 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Thr7 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-threonine at position 7 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Thr7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Thr7]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Thr7_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902380213,"sku":"BF-SMG-D-Thr7","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-asp9-impurity-reference-standard-biofargo","title":"Tirzepatide D-Asp9 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Asp9 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-aspartic acid at position 9 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Asp9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Asp9]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Asp9_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902412981,"sku":"BF-TZP-D-Asp9","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-ser8-impurity-biofargo","title":"[D-Ser8]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Ser8-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-serine at position 8 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Ser8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Ser8]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Ser8_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902445749,"sku":"BF-RTR-D-Ser8","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-ser8-impurity-reference-standard-biofargo","title":"Semaglutide D-Ser8 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Ser8 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-serine at position 8 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Ser8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Ser8]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Ser8_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902478517,"sku":"BF-SMG-D-Ser8","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"retatrutide-d-asp9-impurity-biofargo","title":"[D-Asp9]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Asp9-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-aspartic acid at position 9 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Asp9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Asp9]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Asp9_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902871733,"sku":"BF-RTR-D-Asp9","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-asp9-impurity-reference-standard-biofargo","title":"Semaglutide D-Asp9 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Asp9 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-aspartic acid at position 9 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Asp9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Asp9]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Asp9_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902904501,"sku":"BF-SMG-D-Asp9","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-beta-asp9-impurity-reference-standard-biofargo","title":"Tirzepatide D-β-Asp9 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-β-Asp9 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the aspartic acid residue at position 9 is present as a D-β-aspartyl (isoaspartate) linkage. Isoaspartate formation via a succinimide intermediate is a common degradation pathway of Asp-containing peptides during synthesis, formulation, and storage. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-beta-Asp9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-β-Asp9]Tirzepatide; Isoaspartate (β-Asp) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-beta-Asp9_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902937269,"sku":"BF-TZP-D-beta-Asp9","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-tyr10-impurity-biofargo","title":"[D-Tyr10]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Tyr10-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-tyrosine at position 10 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Tyr10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Tyr10]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Tyr10_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415902970037,"sku":"BF-RTR-D-Tyr10","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-beta-asp9-impurity-reference-standard-biofargo","title":"Semaglutide β-Asp9 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide β-Asp9 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the aspartic acid residue at position 9 is present as an L-β-aspartyl (isoaspartate) linkage. Isoaspartate formation via a succinimide intermediate is a common degradation pathway of Asp-containing peptides during synthesis, formulation, and storage. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-beta-Asp9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[β-Asp9]Semaglutide; Isoaspartate (β-Asp) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-beta-Asp9_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415903002805,"sku":"BF-SMG-beta-Asp9","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-tyr10-impurity-reference-standard-biofargo","title":"Tirzepatide D-Tyr10 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Tyr10 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-tyrosine at position 10 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Tyr10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Tyr10]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Tyr10_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415903035573,"sku":"BF-TZP-D-Tyr10","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-ser11-impurity-biofargo","title":"[D-Ser11]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Ser11-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-serine at position 11 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Ser11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Ser11]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Ser11_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415903068341,"sku":"BF-RTR-D-Ser11","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-beta-asp9-impurity-reference-standard-biofargo","title":"Semaglutide D-β-Asp9 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-β-Asp9 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the aspartic acid residue at position 9 is present as a D-β-aspartyl (isoaspartate) linkage. Isoaspartate formation via a succinimide intermediate is a common degradation pathway of Asp-containing peptides during synthesis, formulation, and storage. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-beta-Asp9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-β-Asp9]Semaglutide; Isoaspartate (β-Asp) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-beta-Asp9_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415903101109,"sku":"BF-SMG-D-beta-Asp9","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-ser11-impurity-reference-standard-biofargo","title":"Tirzepatide D-Ser11 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Ser11 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-serine at position 11 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Ser11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Ser11]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Ser11_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415903133877,"sku":"BF-TZP-D-Ser11","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-ile12-impurity-biofargo","title":"[D-Ile12]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Ile12-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-isoleucine at position 12 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Ile12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Ile12]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Ile12_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415903166645,"sku":"BF-RTR-D-Ile12","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-val10-impurity-reference-standard-biofargo","title":"Semaglutide D-Val10 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Val10 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-valine at position 10 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Val10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Val10]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Val10_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904641205,"sku":"BF-SMG-D-Val10","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-ile12-impurity-reference-standard-biofargo","title":"Tirzepatide D-Ile12 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Ile12 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-isoleucine at position 12 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Ile12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Ile12]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Ile12_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904673973,"sku":"BF-TZP-D-Ile12","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-alpha-meleu13-impurity-biofargo","title":"[D-αMeLeu13]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-αMeLeu13-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-α-methyl-leucine at position 13 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-alpha-MeLeu13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-(α)MeLeu13]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-alpha-MeLeu13_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904706741,"sku":"BF-RTR-D-alpha-MeLeu13","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-ser11-impurity-reference-standard-biofargo","title":"Semaglutide D-Ser11 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Ser11 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-serine at position 11 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Ser11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Ser11]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Ser11_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904739509,"sku":"BF-SMG-D-Ser11","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-leu14-impurity-reference-standard-biofargo","title":"Tirzepatide D-Leu14 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-Leu14 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the L-leucine at position 14 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-Leu14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Leu14]Tirzepatide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-Leu14_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904772277,"sku":"BF-TZP-D-Leu14","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-leu14-impurity-biofargo","title":"[D-Leu14]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Leu14-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-leucine at position 14 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Leu14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Leu14]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Leu14_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904805045,"sku":"BF-RTR-D-Leu14","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-tyr13-impurity-reference-standard-biofargo","title":"Semaglutide D-Tyr13 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Tyr13 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-tyrosine at position 13 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Tyr13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Tyr13]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Tyr13_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904837813,"sku":"BF-SMG-D-Tyr13","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"retatrutide-d-asp15-impurity-biofargo","title":"[D-Asp15]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Asp15-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-aspartic acid at position 15 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Asp15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Asp15]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Asp15_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904870581,"sku":"BF-RTR-D-Asp15","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-leu14-impurity-reference-standard-biofargo","title":"Semaglutide D-Leu14 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Leu14 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-leucine at position 14 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Leu14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Leu14]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Leu14_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904903349,"sku":"BF-SMG-D-Leu14","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"},{"product_id":"tirzepatide-d-beta-asp15-impurity-reference-standard-biofargo","title":"Tirzepatide D-β-Asp15 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eTirzepatide D-β-Asp15 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. In this variant, the aspartic acid residue at position 15 is present as a D-β-aspartyl (isoaspartate) linkage. Isoaspartate formation via a succinimide intermediate is a common degradation pathway of Asp-containing peptides during synthesis, formulation, and storage. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eTirzepatide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-TZP-D-beta-Asp15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2023788-19-2 (Tirzepatide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC225H348N48O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4813.53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-β-Asp15]Tirzepatide; Isoaspartate (β-Asp) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-TZP-D-beta-Asp15_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415904936117,"sku":"BF-TZP-D-beta-Asp15","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Tirzepatide_Structure.png?v=1790976068"},{"product_id":"retatrutide-d-lys16-impurity-biofargo","title":"[D-Lys16]-Retatrutide Impurity","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eD-Lys16-Retatrutide Impurity is a high-purity peptide impurity of Retatrutide, supplied as a research-grade analytical material for impurity identification, analytical method development and quality-control research. In this variant, the L-lysine at position 16 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. It can serve as a qualitative marker for retention-time and mass confirmation when profiling Retatrutide samples by HPLC and LC-MS.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eProduct Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eRetatrutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eResearch grade (for analytical use only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-RTR-D-Lys16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e2381089-83-2 (Retatrutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC221H342N46O68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4731.42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Lys16]Retatrutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eImpurity identification and peak tracking in HPLC and LC-MS analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eAnalytical method development and optimization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eProcess-related impurity research for Retatrutide peptide synthesis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eForced degradation and stability research\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRetention-time and mass confirmation as a qualitative marker\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-RTR-D-Lys16_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415908671669,"sku":"BF-RTR-D-Lys16","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Retatrutide_Structure.png?v=1790976067"},{"product_id":"semaglutide-d-glu15-impurity-reference-standard-biofargo","title":"Semaglutide D-Glu15 Impurity Reference Standard","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eSemaglutide D-Glu15 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Semaglutide. In this variant, the L-glutamic acid at position 15 is replaced by its D-enantiomer, a racemization-related impurity that can arise during solid-phase peptide synthesis or under stress conditions. This reference material supports accurate impurity identification, structural confirmation, and quantitative analysis by HPLC and LC-MS in peptide drug development and manufacturing workflows.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable style=\"border-collapse:collapse;width:90%\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAPI Category\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSemaglutide Impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eOff-white lyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eBF-SMG-D-Glu15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePackage Size\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e50 mg (custom sizes available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e≥95% (HPLC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSalt Form\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eSodium salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eParent Compound CAS\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e910463-68-2 (Semaglutide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003eC187H291N45O59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e4113.64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e20% ACN in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eStorage Condition\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e-20±5°C, protect from light and moisture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:center\"\u003eSynonyms\u003c\/td\u003e\n\u003ctd style=\"text-align:center\"\u003e[D-Glu15]Semaglutide; Racemization (D-isomer) impurity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003ePharmaceutical impurity profiling and quality control\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHPLC and LC-MS\/MS method development and validation\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eDrug substance and drug product release testing\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eStability studies and forced degradation analysis\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRegulatory submission support (FDA, EMA, ICH guidelines)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCustom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor research use only. Not intended for diagnostic or therapeutic use.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/BF-SMG-D-Glu15_MSDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eMSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCOA\u003c\/strong\u003e\u003c\/p\u003e","brand":"Biofargo","offers":[{"title":"50mg","offer_id":53415908704437,"sku":"BF-SMG-D-Glu15","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/5312\/2997\/files\/Semaglutide_Structure.png?v=1790976067"}],"url":"https:\/\/biofargo.com\/collections\/glp-1-peptide-impurity.oembed?page=6","provider":"Biofargo","version":"1.0","type":"link"}