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

4-(2-羟基乙基)-5-甲基-1,2-二氢-3H-吡唑-3-酮

Also known as: 1,2-Dihydro-4-(2-hydroxyethyl)-5-methyl-3H-pyrazol-3-one, 2,3-Dihydro-4-(2-hydroxyethyl)-5-methyl-3-oxo-1H-pyrazole, 4-(2-Hydroxyethyl)-5-methyl-1H-pyrazol-3(2H)-one, 4-(2-Hydroxy-ethyl)-5-methyl-2H-pyrazol-3-ol, 4-(2-Hydroxyethyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one, 4-(2-Hydroxy-aethyl)-5-methyl-1,2-dihydro-pyrazol-3-on, hydroxyethylmethyldihydropyrazolone

4-(2-Hydroxyethyl)-5-methyl-1,2-dihydro-3H-pyrazol-3-one (CAS 65287-96-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H10N2O2 and a molecular weight of 142.15600 g/mol. It is also known as 1,2-Dihydro-4-(2-hydroxyethyl)-5-methyl-3H-pyrazol-3-one, 2,3-Dihydro-4-(2-hydroxyethyl)-5-methyl-3-oxo-1H-pyrazole and 4-(2-Hydroxyethyl)-5-methyl-1H-pyrazol-3(2H)-one. Key properties include a melting point of 185-188ºC and a density of 1.168 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

65287-96-9

Jingsj CID

J-1350280-9

Molecular Formula

C₆H₁₀N₂O₂

Chinese Name

4-(2-羟基乙基)-5-甲基-1,2-二氢-3H-吡唑-3-酮

Molecular Weight

142.15600 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026