2-Bromo-1-(5-methyl-1-phenyl-1H-pyrazol-4-yl)ethanone

2-溴-1-(5-甲基-1-苯基-1H-吡唑-4-基)-1-乙酮

Also known as: 2-Bromo-1-(5-methyl-1-phenylpyrazol-4-yl)ethanone, 2-Bromo-1-(5-methyl-1-phenyl-1H-pyrazol-4-yl)-1-ethanone, 4-(Bromoacetyl)-5-methyl-1-phenyl-1H-pyrazole, Ethanone, 2-bromo-1-(5-methyl-1-phenyl-1H-pyrazol-4-yl)-

2-Bromo-1-(5-methyl-1-phenyl-1H-pyrazol-4-yl)ethanone (CAS 137577-00-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H11BrN2O and a molecular weight of 279.13300 g/mol. It is also known as 2-Bromo-1-(5-methyl-1-phenylpyrazol-4-yl)ethanone, 2-Bromo-1-(5-methyl-1-phenyl-1H-pyrazol-4-yl)-1-ethanone and 4-(Bromoacetyl)-5-methyl-1-phenyl-1H-pyrazole. Key properties include a melting point of 94-96ºC, a boiling point of 373.1ºC at 760 mmHg, a density of 1.44 g/cm3 and a flash point of 179.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

137577-00-5

Jingsj CID

J-1395873-6

Molecular Formula

C₁₂H₁₁BrN₂O

Chinese Name

2-溴-1-(5-甲基-1-苯基-1H-吡唑-4-基)-1-乙酮

Molecular Weight

279.13300 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026