1,6-dihydro-3-methyl-7H-pyrazolo[4,3-d]pyrimidin-7-one

7-羟基-3-甲基吡唑并[4,3-d]嘧啶

Also known as: 3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one, 3-methyl-2,4-dihydropyrazolo[4,3-d]pyrimidin-7-one, 3-methyl-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine, 3-Methylpyrazolo[4,3-d]pyrimidin-7-one

1,6-dihydro-3-methyl-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 5399-94-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6N4O and a molecular weight of 150.13800 g/mol. It is also known as 3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one, 3-methyl-2,4-dihydropyrazolo[4,3-d]pyrimidin-7-one and 3-methyl-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine. Key properties include a boiling point of 423.4ºC at 760 mmHg, a density of 1.72g/cm3 and a flash point of 209.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

5399-94-0

Jingsj CID

J-1002279-1

Molecular Formula

C₆H₆N₄O

Chinese Name

7-羟基-3-甲基吡唑并[4,3-d]嘧啶

Molecular Weight

150.13800 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026