1-(3-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one

1-(3-氨基苯基)-3-甲基-1H-吡唑-5(4H)-酮

Also known as: 2-(3-aminophenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-one, 2-(3-aminophenyl)-5-methyl-4H-pyrazol-3-one, 1-(3-aminophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one, 1-(3-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one, 2-(3-aminoanilino)-5-methyl-4H-pyrazol-3-one

1-(3-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one (CAS 90-32-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H11N3O and a molecular weight of 189.21400 g/mol. It is also known as 2-(3-aminophenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-one, 2-(3-aminophenyl)-5-methyl-4H-pyrazol-3-one and 1-(3-aminophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one. Key properties include a boiling point of 435.1ºC at 760 mmHg, a density of 1.3g/cm3 and a flash point of 217ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

90-32-4

Jingsj CID

J-1158547-1

Molecular Formula

C₁₀H₁₁N₃O

Chinese Name

1-(3-氨基苯基)-3-甲基-1H-吡唑-5(4H)-酮

Molecular Weight

189.21400 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026