2-Chloro-1-methyl-1H-benzimidazol-5-amine

Also known as: 2-Chloro-1-methyl-1H-benzo[d]imidazol-5-amine, 1-Methyl-2-chloro-5-aminobenzimidazole, 5-Amino-2-chloro-1-methyl-1H-benzimidazole, 1H-Benzimidazol-5-amine, 2-chloro-1-methyl-

2-Chloro-1-methyl-1H-benzimidazol-5-amine (CAS 203302-74-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8ClN3 and a molecular weight of 181.622 g/mol. Key properties include a boiling point of 393.2±34.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 191.6±25.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 203302-74-3
Jingsj CID: J-1593251-1
Molecular Formula: C₈H₈ClN₃
Molecular Weight: 181.622 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	393.2±34.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	191.6±25.7 °C
Exact Mass	181.040680
PSA	43.84000
LogP	1.42
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.688

Frequently Asked Questions

What is the CAS number of 2-Chloro-1-methyl-1H-benzimidazol-5-amine?

The CAS number of 2-Chloro-1-methyl-1H-benzimidazol-5-amine is 203302-74-3.

What are the molecular formula and molecular weight of 2-Chloro-1-methyl-1H-benzimidazol-5-amine?

2-Chloro-1-methyl-1H-benzimidazol-5-amine has molecular formula C8H8ClN3 and molecular weight 181.622 g/mol.

What are the upstream and downstream products of 2-Chloro-1-methyl-1H-benzimidazol-5-amine?

For 2-Chloro-1-methyl-1H-benzimidazol-5-amine, Upstream Products: 2-Chloro-6-nitro-1H-benzo[d]imidazole, iodomethane, 2-Chlorobenzimidazole.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Chloro-1-methyl-1H-benzimidazol-5-amine (CAS 203302-74-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1593251-1 (accessed 2026-11-09).

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