Molekula
2-Chloro-1H-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
2-Chloro-1H-benzimidazole is a heterocyclic aromatic compound primarily used as a synthetic intermediate in pharmaceuticals, agrochemicals, and dyes. Its reactive 2-chloro group serves as a building block for introducing 2-amino, 2-alkoxy and 2-thio substituents on the benzimidazole ring, as in synthetic routes to antihistamines such as astemizole and mizolastine. This white crystalline solid has a CAS number of 4857-06-1, a molecular formula of C7H5ClN2, and a molecular weight of 152.58 g/mol. It is stable under ambient storage conditions but requires careful handling due to its warning-level hazard classification. Molekula supplies 2-Chloro-1H-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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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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
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 89997669 |
| CAS Number | 4857-06-1 |
| IUPAC Name | 2-chloro-1H-benzimidazole |
| EC Number | 225-453-3 |
| Molecular Formula | C7H5ClN2 |
| Molecular Weight | 152.58 |
| Exact Mass | 152.0141 |
| SMILES | C1=CC=C2C(=C1)NC(=N2)Cl |
| InChIKey | AYPSHJCKSDNETA-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H5ClN2/c8-7-9-5-3-1-2-4-6(5)10-7/h1-4H,(H,9,10) |
| PubChem CID | 78572 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29339982 |
| Tariff Code | 2933998090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
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
- 1H-Benzimidazole, 2-chloro-
- 2-chloranyl-1~{H}-benzimidazole
- 2-Chloro-1H-1,3-benzimidazole
- 2-Chloro-1H-1,3-Benzodiazole
- 2-chloro-1H-benzo[d]imidazole
- 2-chloro-1h-benzoimidazole
- 2-Chlorobenzimidazole
- AYPSHJCKSDNETA-UHFFFAOYSA-N
- Benzimidazole, 2-chloro-
Frequently asked questions
What is 2-Chloro-1H-benzimidazole commonly used for?
It is primarily used as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and as a building block for dyes and other organic compounds.
What is the molecular formula and molecular weight of 2-Chloro-1H-benzimidazole?
The molecular formula is C7H5ClN2, and the molecular weight is 152.58 g/mol.
What is the hazard classification and storage requirement for this product?
The product has a signal word of 'Warning' and should be stored at ambient conditions in a cool, dry place.
What purity grades are available for 2-Chloro-1H-benzimidazole?
Molekula supplies this product in technical and reagent grades, with typical purities of ≥97% and ≥99% respectively.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options, including drums and totes, for orders exceeding 5 kg.
What documentation is provided with an order of 2-Chloro-1H-benzimidazole?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a packing list for traceability.
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.