Pyrimido[4,5-d]pyridazin-4(3H)-one
(8CI)-嘧啶并[4,5-d]吡嗪-4(3H)-酮
Also known as: 1H-pyrimido[4,5-d]pyridazin-4-one, 3H-Pyrimido<4,5-d>pyridazin-4-on, Pyrimido[4,5-d]pyridazin-4(3H)-one (8CI)
Pyrimido[4,5-d]pyridazin-4(3H)-one (CAS 21579-42-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4N4O and a molecular weight of 148.12200 g/mol. It is also known as 1H-pyrimido[4,5-d]pyridazin-4-one, 3H-Pyrimido<4,5-d>pyridazin-4-on and Pyrimido[4,5-d]pyridazin-4(3H)-one (8CI). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21579-42-0
- Jingsj CID
- J-1522973-9
- Molecular Formula
- C6H4N4O
- Chinese Name
- (8CI)-嘧啶并[4,5-d]吡嗪-4(3H)-酮
- Molecular Weight
- 148.12200 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quoteFrequently Asked Questions
What is the CAS number of Pyrimido[4,5-d]pyridazin-4(3H)-one?
The CAS number of Pyrimido[4,5-d]pyridazin-4(3H)-one is 21579-42-0.
What are the molecular formula and molecular weight of Pyrimido[4,5-d]pyridazin-4(3H)-one?
Pyrimido[4,5-d]pyridazin-4(3H)-one has molecular formula C6H4N4O and molecular weight 148.12200 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pyrimido[4,5-d]pyridazin-4(3H)-one (CAS 21579-42-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522973-9 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.