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

7-羟基吡唑并[4,3-d]嘧啶

Also known as: 7-Hydroxypyrazolo[4,3-d]pyrimidine, 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,4-Dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one, 1H-Pyrazolo[4,3-d]pyrimidin-7-ol, Nsc 79301, 7-ketopyrazolo(4,3-d)pyrimidine

1,6-Dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 13877-55-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4O and a molecular weight of 136.111 g/mol. It is also known as 7-Hydroxypyrazolo[4,3-d]pyrimidine, 7H-Pyrazolo[4,3-d]pyrimidin-7-one and 1,4-Dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one. Key properties include a boiling point of 559.8±23.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 292.3±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

13877-55-9

Jingsj CID

J-1011396-1

Molecular Formula

C₅H₄N₄O

Chinese Name

7-羟基吡唑并[4,3-d]嘧啶

Molecular Weight

136.111 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026