3-Methyl-1-p-tolyl-5-pyrazolone

3-甲基-1-对甲苯基-5-吡唑啉酮

Also known as: 2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one, 1-(4-Methylphenyl)-3-methyl-5-pyrazolone, 1-p-Tolyl-3-methyl-5-pyrazolone, 3-Methyl-1-(4-methylphenyl)-4,5-dihydro-1H-pyrazol-5-one, 5-Methyl-2-(4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one, TIMTEC-BB SBB003677

3-Methyl-1-p-tolyl-5-pyrazolone (CAS 86-92-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H12N2O and a molecular weight of 188.226 g/mol. It is also known as 2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one, 1-(4-Methylphenyl)-3-methyl-5-pyrazolone and 1-p-Tolyl-3-methyl-5-pyrazolone. Key properties include a melting point of 129 °C, a boiling point of 365.1±21.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 174.6±22.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

86-92-0

Jingsj CID

J-1133288-6

Molecular Formula

C₁₁H₁₂N₂O

Chinese Name

3-甲基-1-对甲苯基-5-吡唑啉酮

Molecular Weight

188.226 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026