1-Methyl-3-phenyl-1H-pyrazol-5(4H)-one

1-甲基-3-苯基-1H-吡唑-5(4H)-酮

Also known as: 1-Methyl-3-phenyl-2-pyrazoline-5-one, 2-Methyl-5-phenyl-2,4-dihydro-3H-pyrazol-3-one, 1-Methyl-3-phenyl-4,5-dihydro-1H-pyrazol-5-one, 3H-Pyrazol-3-one, 2,4-dihydro-2-methyl-5-phenyl-, 2-Methyl-5-phenyl-2H-pyrazole-3(4H)-one, 2-Methyl-5-phenyl-4H-pyrazol-3-one

1-Methyl-3-phenyl-1H-pyrazol-5(4H)-one (CAS 41927-50-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10N2O and a molecular weight of 174.19900 g/mol. It is also known as 1-Methyl-3-phenyl-2-pyrazoline-5-one, 2-Methyl-5-phenyl-2,4-dihydro-3H-pyrazol-3-one and 1-Methyl-3-phenyl-4,5-dihydro-1H-pyrazol-5-one. Key properties include a boiling point of 333.7ºC at 760mmHg, a density of 1.17g/cm3 and a flash point of 155.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

41927-50-8

Jingsj CID

J-1506060-8

Molecular Formula

C₁₀H₁₀N₂O

Chinese Name

1-甲基-3-苯基-1H-吡唑-5(4H)-酮

Molecular Weight

174.19900 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026