1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carbaldehyde oxime

1,5-二甲基-3-氧代-2-苯基-2,3-二氢-1H-吡唑-4-甲醛肟

Also known as: 1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxaldehyde oxime, Antipyraldehyde, oxime (7CI), 4-(hydroxyiminomethyl)-1,5-dimethyl-2-phenylpyrazol-3-one, 2,3-dimethyl-1-phenyl-3-pyrazolin-5-one-4-carboxaldoxime

1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carbaldehyde oxime (CAS 89169-88-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H13N3O2 and a molecular weight of 231.25100 g/mol. It is also known as 1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxaldehyde oxime, Antipyraldehyde, oxime (7CI) and 4-(hydroxyiminomethyl)-1,5-dimethyl-2-phenylpyrazol-3-one. Key properties include a melting point of 216ºC, a boiling point of 357.5ºC at 760 mmHg, a density of 1.23g/cm3 and a flash point of 170ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

89169-88-0

Jingsj CID

J-908193-0

Molecular Formula

C₁₂H₁₃N₃O₂

Chinese Name

1,5-二甲基-3-氧代-2-苯基-2,3-二氢-1H-吡唑-4-甲醛肟

Molecular Weight

231.25100 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026