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 1999 · 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
Safety Data Sheets (SDS)
We haven't published a Safety Data Sheet for this product yet. Ask us and we'll send you one.
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
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.