1,5-Dimethyl-2,3-dihydro-1H-pyrazol-3-one

1,5-二甲基-2,3-二氢-1H-吡唑-3-酮

Also known as: 2,3-Dimethyl-5-pyrazolone, 1,5-Dimethyl-1,2-dihydro-3-pyrazolone, 1,5-Dimethyl-3-hydroxypyrazole, 1,5-Dimethyl-1H-pyrazol-3(2H)-one, 1,5-dimethyl-1,2-dihydro-pyrazol-3-one, 1,5-dimethyl-2,3-dihydro-1H-pyrazol-3-one, 2,3-Dimethyl-3-pyrazolin-5-one, 2,3-Dimethyl-pyrazolin-5-on, 3H-Pyrazol-3-one, 1,2-dihydro-1,5-dimethyl-, 1,5-dimethylpyrazolin-3-one

1,5-Dimethyl-2,3-dihydro-1H-pyrazol-3-one (CAS 3201-28-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8N2O and a molecular weight of 112.13000 g/mol. It is also known as 2,3-Dimethyl-5-pyrazolone, 1,5-Dimethyl-1,2-dihydro-3-pyrazolone and 1,5-Dimethyl-3-hydroxypyrazole. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3201-28-3

Jingsj CID

J-1348029-7

Molecular Formula

C₅H₈N₂O

Chinese Name

1,5-二甲基-2,3-二氢-1H-吡唑-3-酮

Molecular Weight

112.13000 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026