2-oxo-2,3-dihydro-1H-benzimidazole-5-sulfonyl chloride

2,3-二氢-2-氧代-1H-苯并咪唑-5-磺酰氯

Also known as: 2-oxo-2,3-dihydro-1H-benzoimidazole-5-sulfonyl chloride, 2-oxo-1,3-dihydrobenzimidazole-5-sulfonyl chloride, 2,3-dihydro-2-oxo-1H-benzimidazole-5-sulfonyl chloride, 1H-benzimidazole-5-sulfonyl chloride, 2,3-dihydro-2-oxo-, 2-Oxo-2,3-dihydro-1H-benzimidazole-5-sulfonyl chloride

2-oxo-2,3-dihydro-1H-benzimidazole-5-sulfonyl chloride (CAS 53439-87-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5ClN2O3S and a molecular weight of 232.64400 g/mol. It is also known as 2-oxo-2,3-dihydro-1H-benzoimidazole-5-sulfonyl chloride, 2-oxo-1,3-dihydrobenzimidazole-5-sulfonyl chloride and 2,3-dihydro-2-oxo-1H-benzimidazole-5-sulfonyl chloride. Key properties include a boiling point of 272.7ºC at 760 mmHg, a density of 1.618g/cm3 and a flash point of 118.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
53439-87-5
Jingsj CID
J-1064461-2
Molecular Formula
C7H5ClN2O3S
Chinese Name
2,3-二氢-2-氧代-1H-苯并咪唑-5-磺酰氯
Molecular Weight
232.64400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point272.7ºC at 760 mmHg
Density1.618g/cm3
Flash Point118.7ºC

Frequently Asked Questions

What is the CAS number of 2-oxo-2,3-dihydro-1H-benzimidazole-5-sulfonyl chloride?

The CAS number of 2-oxo-2,3-dihydro-1H-benzimidazole-5-sulfonyl chloride is 53439-87-5.

What are the molecular formula and molecular weight of 2-oxo-2,3-dihydro-1H-benzimidazole-5-sulfonyl chloride?

2-oxo-2,3-dihydro-1H-benzimidazole-5-sulfonyl chloride has molecular formula C7H5ClN2O3S and molecular weight 232.64400 g/mol.

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

Last updated:

How to cite: Jingsj. "2-oxo-2,3-dihydro-1H-benzimidazole-5-sulfonyl chloride (CAS 53439-87-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1064461-2 (accessed 2026-10-23).

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