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CAS: 51-17-2 | C7H6N2 | 118.14 g/mol
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Synonym: benzimidazole, 1h-benzo d imidazole, 1,3-benzodiazole, benzoimidazole, o-benzimidazole, 3-azaindole, benziminazole, benzoglyoxaline, azindole, 1,3-diazaindene
Description
Benzimidazole is a heterocyclic aromatic compound widely used as a key intermediate in organic synthesis, pharmaceutical research, and materials science. Due to its fused benzene–imidazole ring structure, benzimidazole exhibits versatile chemical reactivity and structural stability, making it an important building block in the development of bioactive molecules, functional materials, and coordination compounds.
This product is supplied as a high-purity crystalline powder (≥98%), manufactured under strict quality control standards and verified by HPLC and infrared spectroscopy to ensure consistency and reliability. It is suitable for research and laboratory use, including synthesis development, reference studies, and analytical validation.
Specifications
| Parameter | Specification |
| Chemical Name | Benzimidazole |
| CAS Number | 51-17-2 |
| IUPAC Name | 1H-benzimidazole |
| Molecular Formula | C7H6N2 |
| Molecular Weight | 118.14 g/mol |
| SMILES | N1C=NC2=CC=CC=C12 |
| Assay (HPLC) | ≥ 97.5% |
| Purity | 98% |
| Melting Point | 171.0 – 174.0 °C |
| Boiling Point | > 360.0 °C |
| Appearance | Beige to brown crystalline powder or crystals |
| Infrared Spectrum | Authentic |
| Solubility | Sparingly soluble in water; more soluble in hot water; sparingly soluble in ether; practically insoluble in benzene and petroleum ether; soluble in aqueous acids and strong alkalies; freely soluble in alcohol and boiling xylene |
| Physical Form | Crystalline powder or crystals |
| Packaging | Plastic bottle |
| Quantity | 100 g |
| Beilstein Registry Number | 23, 131 |
| Merck Index | 15, 1083 |
Features
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High Purity (≥98%)
Verified by HPLC to ensure consistent quality for research and synthesis.
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Well-Defined Chemical Identity
Confirmed by infrared spectroscopy and reference-standard comparison.
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Excellent Chemical Stability
Suitable for multi-step synthesis and long-term laboratory storage.
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Broad Solubility Profile
Compatible with acidic, alkaline, and organic solvent systems.
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Research Grade Quality
Ideal for laboratory research, method development, and analytical studies.
Applications
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Organic & Medicinal Chemistry
Intermediate for the synthesis of benzimidazole derivatives and heterocyclic compounds.
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Pharmaceutical Research
Structural scaffold for bioactive molecule screening and drug discovery studies.
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Materials Science
Used in the development of functional materials and coordination complexes.
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Analytical & Reference Use
Suitable for method validation, reference comparisons, and spectroscopy studies.
Safety and Handling
| Safety Parameter | Information |
| Hazard Category | Warning |
| Hazard Statements (GHS) | Causes skin irritation. May cause respiratory irritation. Causes serious eye irritation. |
| Precautionary Statements (GHS) | Avoid breathing dust/fume/gas/mist/vapors/spray. Wear protective gloves, protective clothing, eye protection, and face protection. IF ON SKIN: Wash with plenty of soap and water. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. |
| EINECS Number | 200-081-4 |
| RTECS Number | DD5425000 |
| TSCA Status | Listed (TSCA) |
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.

