2-Methyl-6,7-dihydropyrazolo[1,5-a]pyrimidin-5(4H)-one

2-甲基-6,7-二氢吡唑并[1,5-a]嘧啶-5(4H)-酮

Also known as: 2-Methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrimidin-5-one, 2-Methyl-6,7-dihydro-1H-pyrazolo[1,5-a]pyrimidin-5-one, Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 6,7-dihydro-2-methyl- (9CI)

2-Methyl-6,7-dihydropyrazolo[1,5-a]pyrimidin-5(4H)-one (CAS 380391-51-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H9N3O and a molecular weight of 151.16600 g/mol. It is also known as 2-Methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrimidin-5-one, 2-Methyl-6,7-dihydro-1H-pyrazolo[1,5-a]pyrimidin-5-one and Pyrazolo[1,5-a]pyrimidin-5(4H)-one, 6,7-dihydro-2-methyl- (9CI). Key properties include a boiling point of 377.503ºC at 760 mmHg, a density of 1.444g/cm3 and a flash point of 182.108ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

380391-51-5

Jingsj CID

J-1514238-4

Molecular Formula

C₇H₉N₃O

Chinese Name

2-甲基-6,7-二氢吡唑并[1,5-a]嘧啶-5(4H)-酮

Molecular Weight

151.16600 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026