5-Hydroxy-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid

5-羟基-1-(4-磺苯基)吡唑-3-羧酸

Also known as: 1H-Pyrazole-3-carboxylic acid, 5-hydroxy-1-(4-sulfophenyl)-, 5-HYDROXY-1-(4-SULFOPHENYL)PYRAZOLE-3-CARBOXYLIC ACID, 5-Hydroxy-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid, 5-hydroxy-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid, 5-oxo-1-(4-sulfophenyl)-2,5-dihydro-1H-pyrazole-3-carboxylic acid, 5-oxo-1-(p-sulfophenyl)-2-pyrazoline-3-carboxylic acid, 3-carboxy-1-(4'-sulfophenyl)-5-pyrazolone, 1-(4-sulfophenyl)-3-carboxy-5-hydroxypyrazole, EINECS 244-677-2, Einecs 244-677-2

5-Hydroxy-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid (CAS 21951-33-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8N2O6S and a molecular weight of 284.24 g/mol. It is also known as 1H-Pyrazole-3-carboxylic acid, 5-hydroxy-1-(4-sulfophenyl)-, 5-HYDROXY-1-(4-SULFOPHENYL)PYRAZOLE-3-CARBOXYLIC ACID and 5-hydroxy-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

21951-33-7

Jingsj CID

J-51345-8

Molecular Formula

C₁₀H₈N₂O₆S

Chinese Name

5-羟基-1-(4-磺苯基)吡唑-3-羧酸

Molecular Weight

284.24 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026