4,5-Dihydro-alpha,alpha,3-trimethyl-5-oxo-1-phenyl-1H-pyrazole-4-methanesulfonic acid

4,5-二氢-alpha,alpha,3-三甲基-5-氧代-1-苯基-1H-吡唑-4-甲磺酸

Also known as: 2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)-2-propanesulfonic acid, 2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic acid, 2-(5-Hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)propane-2-sulfonic acid, 1H-Pyrazole-4-methanesulfonic acid, 4,5-dihydro-α,α,3-trimethyl-5-oxo-1-phenyl-, Edaravone P3 Impurity, Edaravone Impurity 4, Edaravone Impurity P3, Edaravone P3

4,5-Dihydro-alpha,alpha,3-trimethyl-5-oxo-1-phenyl-1H-pyrazole-4-methanesulfonic acid (CAS 1323485-71-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H16N2O4S and a molecular weight of 296.342 g/mol. It is also known as 2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)-2-propanesulfonic acid, 2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic acid and 2-(5-Hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)propane-2-sulfonic acid. Key property: a density of 1.35±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1323485-71-7

Jingsj CID

J-1527920-6

Molecular Formula

C₁₃H₁₆N₂O₄S

Chinese Name

4,5-二氢-alpha,alpha,3-三甲基-5-氧代-1-苯基-1H-吡唑-4-甲磺酸

Molecular Weight

296.342 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026