Molekula
Benzimidazole
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Benzimidazole is a bicyclic aromatic organic compound primarily used as a building block in pharmaceuticals, agrochemicals, and dye synthesis. It serves as a key intermediate for drugs like antifungals and antihistamines, as well as in the production of corrosion inhibitors and photographic chemicals. This chemical has a CAS number of 51-17-2, with the molecular formula C7H6N2 and a molecular weight of 118.14 g/mol. It is stored at ambient conditions and carries a signal word of "Warning" for safety classification. Molekula supplies Benzimidazole from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — $56.10 per pack
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100 g — $117.70 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Melting Point | 170 - 172℃ |
| Loss on Drying | ≤0.5% |
| Assay | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Rhombic, bipyramidal plates in water |
| Melting Point | 170.5 °C |
| Water Solubility | 2.01 g/L at 30 °C |
| Vapour Pressure | 0.0000764 mmHg |
| pKa | pKa = 5.3 (at 25 °C) |
| log P (octanol/water) | 1.32 |
Source: PubChem CID 5798 (HSDB, DrugBank, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 68202484 |
| CAS Number | 51-17-2 |
| IUPAC Name | 1H-benzimidazole |
| EC Number | 200-081-4 |
| Molecular Formula | C7H6N2 |
| Molecular Weight | 118.14 |
| Exact Mass | 118.0531 |
| SMILES | C1=CC=C2C(=C1)NC=N2 |
| InChIKey | HYZJCKYKOHLVJF-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H6N2/c1-2-4-7-6(3-1)8-5-9-7/h1-5H,(H,8,9) |
| PubChem CID | 5798 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29339979 |
| Tariff Code | 2933998090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1,3-Benzodiazole
- 1,3-Diazaindene
- 1H-Benzimidazole
- 3-Azaindole
- Azindole
- Benziminazole
- Benzoglyoxaline
- Benzoimidazole
- N,N'-Methenyl-o-phenylenediamine
- o-Benzimidazole
Frequently asked questions
What is benzimidazole commonly used for?
Benzimidazole is primarily used as an intermediate in the synthesis of pharmaceuticals (e.g., benzimidazole-based antifungals such as thiabendazole and carbendazim), agrochemicals, and as a corrosion inhibitor in industrial applications.
What is the chemical formula and molecular weight of benzimidazole?
The chemical formula is **C7H6N2**, and the molecular weight is **118.14 g/mol**.
What safety classification does benzimidazole fall under?
Benzimidazole has a **Signal Word of 'Warning'** under GHS classification, indicating moderate hazard.
How should benzimidazole be stored?
Store benzimidazole at **ambient temperature** in a cool, dry place, away from incompatible substances and moisture.
Does Molekula supply benzimidazole in bulk quantities?
Yes, Molekula can supply benzimidazole in bulk, with quantities tailored to your specific requirements—please contact us for pricing and availability.
What documentation is provided with a benzimidazole order?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS/SDS)**, and a **packing list** for traceability and compliance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.