1H-Pyrazolo[3,4-d]pyridazin-4(5H)-one

1H-吡唑并[3,4-d]哒嗪-4(5H)-酮

Also known as: 1,5-dihydro-4H-Pyrazolo[3,4-d]pyridazin-4-one, 1,5-dihydropyrazolo[3,4-d]pyridazin-4-one, 1H,4H,5H-pyrazolo[3,4-d]pyridazin-4-one, 4H-Pyrazolo[3,4-d]pyridazin-4-one, 1,5-dihydro-

1H-Pyrazolo[3,4-d]pyridazin-4(5H)-one (CAS 13521-25-0) 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 136.11100 g/mol. It is also known as 1,5-dihydro-4H-Pyrazolo[3,4-d]pyridazin-4-one, 1,5-dihydropyrazolo[3,4-d]pyridazin-4-one and 1H,4H,5H-pyrazolo[3,4-d]pyridazin-4-one. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

13521-25-0

Jingsj CID

J-1186452-7

Molecular Formula

C₅H₄N₄O

Chinese Name

1H-吡唑并[3,4-d]哒嗪-4(5H)-酮

Molecular Weight

136.11100 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026