1-(4-Chlorophenyl)-5-methyl-1H-pyrazole-4-carbonyl chloride

1-(4-氯苯基)-5-甲基-1H-吡唑-4-甲酰氯

Also known as: 1-(4-CHLOROPHENYL)-5-METHYL-1H-PYRAZOLE-4-CARBONYL CHLORIDE, 1-(4-chlorophenyl)-5-methylpyrazole-4-carbonyl chloride, 1H-Pyrazole-4-carbonyl chloride, 1-(4-chlorophenyl)-5-methyl-, BUTTPARK 95\50-53

1-(4-Chlorophenyl)-5-methyl-1H-pyrazole-4-carbonyl chloride (CAS 288252-38-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H8Cl2N2O and a molecular weight of 255.10000 g/mol. It is also known as 1-(4-CHLOROPHENYL)-5-METHYL-1H-PYRAZOLE-4-CARBONYL CHLORIDE, 1-(4-chlorophenyl)-5-methylpyrazole-4-carbonyl chloride and 1H-Pyrazole-4-carbonyl chloride, 1-(4-chlorophenyl)-5-methyl-. Key properties include a melting point of 115ºC, a boiling point of 358.7ºC at 760 mmHg, a density of 1.39g/cm3 and a flash point of 170.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

288252-38-0

Jingsj CID

J-1500265-9

Molecular Formula

C₁₁H₈Cl₂N₂O

Chinese Name

1-(4-氯苯基)-5-甲基-1H-吡唑-4-甲酰氯

Molecular Weight

255.10000 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026