1-Aminobenzimidazole-2-sulfonic acid

1-氨基苯并咪唑-2-磺酸

Also known as: 1H-Benzimidazole-2-sulfonic acid, 1-amino-, 1-Amino-1H-benzimidazole-2-sulfonic acid

1-Aminobenzimidazole-2-sulfonic acid (CAS 120341-04-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H7N3O3S and a molecular weight of 213.21400 g/mol. It is also known as 1H-Benzimidazole-2-sulfonic acid, 1-amino- and 1-Amino-1H-benzimidazole-2-sulfonic acid. Key properties include a melting point of 252-253ºC and a density of 1.8g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
120341-04-0
Jingsj CID
J-47941-5
Molecular Formula
C7H7N3O3S
Chinese Name
1-氨基苯并咪唑-2-磺酸
Molecular Weight
213.21400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point252-253ºC
Density1.8g/cm3

Frequently Asked Questions

What is the CAS number of 1-Aminobenzimidazole-2-sulfonic acid?

The CAS number of 1-Aminobenzimidazole-2-sulfonic acid is 120341-04-0.

What are the molecular formula and molecular weight of 1-Aminobenzimidazole-2-sulfonic acid?

1-Aminobenzimidazole-2-sulfonic acid has molecular formula C7H7N3O3S and molecular weight 213.21400 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Aminobenzimidazole-2-sulfonic acid (CAS 120341-04-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47941-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.