4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzoic acid

1-(4-羧基苯基)-3-甲基-5-吡唑酮

Also known as: 1-(4-Carboxyphenyl)-3-methyl-2-pyrazolin-5-one, 1-(4-Carboxyphenyl)-3-methyl-5-pyrazolone, 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzoic acid, Benzoic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-, 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzoic acid, 1-(4-Carboxylphenyl)-3-methyl-5-pyrazolone, MFCD00003135

4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzoic acid (CAS 60875-16-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H10N2O3 and a molecular weight of 218.209 g/mol. It is also known as 1-(4-Carboxyphenyl)-3-methyl-2-pyrazolin-5-one, 1-(4-Carboxyphenyl)-3-methyl-5-pyrazolone and 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzoic acid. Key properties include a melting point of 285 °C (dec.)(lit.), a boiling point of 477.6±28.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 242.7±24.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

60875-16-3

Jingsj CID

J-31123-0

Molecular Formula

C₁₁H₁₀N₂O₃

Chinese Name

1-(4-羧基苯基)-3-甲基-5-吡唑酮

Molecular Weight

218.209 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026