1H-Imidazole-5-sulfonic acid, 2,5-dihydro-2-oxo-

2,5-二氢-2-氧代-1H-咪唑-5-磺酸

Also known as: 2-Oxo-2,5-dihydro-1H-imidazole-5-sulfonic acid, 2-oxo-1,5-dihydroimidazole-5-sulfonic acid, 4-Isoimidazole-4-sulfonic acid, 2-hydroxy- (3CI)

1H-Imidazole-5-sulfonic acid, 2,5-dihydro-2-oxo- (CAS 857807-72-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H4N2O4S and a molecular weight of 164.14000 g/mol. It is also known as 2-Oxo-2,5-dihydro-1H-imidazole-5-sulfonic acid, 2-oxo-1,5-dihydroimidazole-5-sulfonic acid and 4-Isoimidazole-4-sulfonic acid, 2-hydroxy- (3CI). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
857807-72-8
Jingsj CID
J-1492184-9
Molecular Formula
C3H4N2O4S
Chinese Name
2,5-二氢-2-氧代-1H-咪唑-5-磺酸
Molecular Weight
164.14000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 1H-Imidazole-5-sulfonic acid, 2,5-dihydro-2-oxo-?

The CAS number of 1H-Imidazole-5-sulfonic acid, 2,5-dihydro-2-oxo- is 857807-72-8.

What are the molecular formula and molecular weight of 1H-Imidazole-5-sulfonic acid, 2,5-dihydro-2-oxo-?

1H-Imidazole-5-sulfonic acid, 2,5-dihydro-2-oxo- has molecular formula C3H4N2O4S and molecular weight 164.14000 g/mol.

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

Last updated:

How to cite: Jingsj. "1H-Imidazole-5-sulfonic acid, 2,5-dihydro-2-oxo- (CAS 857807-72-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492184-9 (accessed 2026-10-25).

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