4-(4,5-dihydro-3,4-dimethyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid

4-(4,5-二氢-3,4-二甲基-5-氧代-1H-吡唑-1-基)苯磺酸

Also known as: 4-(3,4-dimethyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid, 3,4-dimethyl-1-(4-sulfophenyl)pyrazol-5-one, 3,4-dimethyl-1-(4-sulfophenyl)-5-pyrazolone, 4-(3,4-dimethyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonic acid, p-(4,5-dihydro-3,4-dimethyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid, p-(4,5-dihydro-3,4-dimethyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonic acid, Benzenesulfonic acid, 4-(4,5-dihydro-3,4-dimethyl-5-oxo-1H-pyrazol-1-yl)-

4-(4,5-dihydro-3,4-dimethyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 38254-74-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H12N2O4S and a molecular weight of 268.28900 g/mol. It is also known as 4-(3,4-dimethyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid, 3,4-dimethyl-1-(4-sulfophenyl)pyrazol-5-one and 3,4-dimethyl-1-(4-sulfophenyl)-5-pyrazolone. Key property: a density of 1.47g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

38254-74-9

Jingsj CID

J-1055486-9

Molecular Formula

C₁₁H₁₂N₂O₄S

Chinese Name

4-(4,5-二氢-3,4-二甲基-5-氧代-1H-吡唑-1-基)苯磺酸

Molecular Weight

268.28900 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026