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2-Chlorobenzimidazole

Also known as: 1H-Benzimidazole, 2-chloro-, 2-CHLORO-1H-BENZIMIDAZOLE, 2-CHLORO-1H-BENZOIMIDAZOLE, 2-Chloro-1H-benzo[d]imidazole, 2-Chloro-1H-benzimidazol, Benzimidazole, 2-chloro-, EINECS 225-453-3, MFCD00051944, TIMTEC-BB SBB006585, AKOS B028974

2-Chlorobenzimidazole (CAS 4857-06-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5ClN2 and a molecular weight of 152.58 g/mol. Key properties include a melting point of 207-211 °C(lit.), a boiling point of 328.5±25.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 182.5±8.8 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4857-06-1
Jingsj CID
J-38220-7
Molecular Formula
C7H5ClN2
Molecular Weight
152.58 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point207-211 °C(lit.)
Boiling Point328.5±25.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point182.5±8.8 °C
Exact Mass152.014130
PSA28.68000
LogP2.58
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.703

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 2-Chlorobenzimidazole?

The CAS number of 2-Chlorobenzimidazole is 4857-06-1.

What are the molecular formula and molecular weight of 2-Chlorobenzimidazole?

2-Chlorobenzimidazole has molecular formula C7H5ClN2 and molecular weight 152.58 g/mol.

Is 2-Chlorobenzimidazole hazardous?

2-Chlorobenzimidazole has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 2-Chlorobenzimidazole?

For 2-Chlorobenzimidazole, Upstream Products: 2-Hydroxybenzimidazole, o-Phenylenediamine, 1H-Benzimidazole-2-sulfonic acid; Downstream Products: 1H-Benzimidazol-1-amine,2-chloro-(9CI), 2-Chloro-6-nitro-1H-benzo[d]imidazole, 2-(2-Chloro-1H-benzimidazol-1-yl)ethanol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-Chlorobenzimidazole (CAS 4857-06-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38220-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.