1-(1,5-Dimethyl-1H-pyrazol-4-yl)ethanone

1-(1,5-二甲基-1H-吡唑-4-基)乙酮

Also known as: 1-(1,5-DIMETHYL-1H-PYRAZOL-4-YL)ETHANONE, 1-(1,5-dimethyl-4-pyrazolyl)ethanone, 1-(1,5-dimethylpyrazol-4-yl)ethanone, 4-Acetyl-1,5-dimethyl-pyrazol, 4-acetyl-1,5-dimethylpyrazole, Ethanone,1-(1,5-dimethyl-1H-pyrazol-4-yl)-

1-(1,5-Dimethyl-1H-pyrazol-4-yl)ethanone (CAS 21686-05-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H10N2O and a molecular weight of 138.16700 g/mol. It is also known as 1-(1,5-DIMETHYL-1H-PYRAZOL-4-YL)ETHANONE, 1-(1,5-dimethyl-4-pyrazolyl)ethanone and 1-(1,5-dimethylpyrazol-4-yl)ethanone. Key properties include a boiling point of 231.8ºC at 760 mmHg, a density of 1.09g/cm3 and a flash point of 94ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

21686-05-5

Jingsj CID

J-1002633-5

Molecular Formula

C₇H₁₀N₂O

Chinese Name

1-(1,5-二甲基-1H-吡唑-4-基)乙酮

Molecular Weight

138.16700 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026