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C228H353N49O69,MW 4884.61
$595.00
Sku: BF-TZP-Double-Ala21
Availability:
AVAILABLE
In stock & estimated to ship in 3-7 days by October 14, 2026
Description
Tirzepatide Endo-Ala21 impurity is a high-purity impurity reference standard designed for pharmaceutical quality control, analytical method development, and regulatory compliance testing of Tirzepatide. This insertion impurity contains an additional alanine at position 21 (duplicated residue) in the Tirzepatide sequence, typically resulting from double coupling 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.
Specifications
| Parameter | Value |
| API Category | Tirzepatide Impurity |
| Appearance | Off-white lyophilized powder |
| Catalog Number | BF-TZP-Double-Ala21 |
| Package Size | 50 mg (custom sizes available upon request) |
| Purity | ≥95% (HPLC) |
| Salt Form | Sodium salt |
| CAS Number | N/A |
| Parent Compound CAS | 2023788-19-2 (Tirzepatide) |
| Molecular Formula | C228H353N49O69 |
| Molecular Weight | 4884.61 |
| Solubility | 20% ACN in water |
| Storage Condition | -20±5°C, protect from light and moisture |
| Synonyms | [Endo-Ala21]Tirzepatide; [Double-Ala21]Tirzepatide; Insertion (double) impurity |
Applications
Pharmaceutical impurity profiling and quality control
HPLC and LC-MS/MS method development and validation
Drug substance and drug product release testing
Stability studies and forced degradation analysis
Regulatory submission support (FDA, EMA, ICH guidelines)
Custom sizes and specifications are available upon request. Please use the Request a Quote button for pricing.
For research use only. Not intended for diagnostic or therapeutic use.
Documents
MSDS
COA
When can I expect my order to ship?
Most orders are filled and shipped within 2-3 business days from the time they are received.
Our standard shipping usually take 2-5 days.
We also provide express shippping for time-sensitive deliveries.
Email contact@biofargo.com if you have any requirements.
