4-(2-Hydroxyethyl)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one

4-(2-羟乙基)-3-甲基-1-苯基-2-吡唑啉-5-酮

Also known as: 4-(2-Hydroxyethyl)-3-methyl-1-phenyl-2-pyrazolin-5-one, 4-(2-Hydroxyethyl)-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, 4-(2-Hydroxyethyl)-5-methyl-2-phenyl-4H-pyrazol-3-one, 4-(2-HYDROXY-ETHYL)-5-METHYL-2-PHENYL-2,4-DIHYDRO-PYRAZOL-3-ONE, 3H-Pyrazol-3-one, 2,4-dihydro-4-(2-hydroxyethyl)-5-methyl-2-phenyl-, MFCD00067790, OTAVA-BB BB7018930007

4-(2-Hydroxyethyl)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 10223-33-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H14N2O2 and a molecular weight of 218.25200 g/mol. It is also known as 4-(2-Hydroxyethyl)-3-methyl-1-phenyl-2-pyrazolin-5-one, 4-(2-Hydroxyethyl)-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one and 4-(2-Hydroxyethyl)-5-methyl-2-phenyl-4H-pyrazol-3-one. Key properties include a boiling point of 411.362ºC at 760 mmHg, a density of 1.226g/cm3 and a flash point of 202.585ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

10223-33-3

Jingsj CID

J-39113-7

Molecular Formula

C₁₂H₁₄N₂O₂

Chinese Name

4-(2-羟乙基)-3-甲基-1-苯基-2-吡唑啉-5-酮

Molecular Weight

218.25200 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026