3(2H)-Pyridazinone, 5-phenyl-

5-苯基哒嗪-3(2H)-酮

Also known as: 5-Phenylpyridazin-3(2H)-one, 5-Phenyl-2,3-dihydropyridazin-3-one, 4-phenyl-1H-pyridazin-6-one

3(2H)-Pyridazinone, 5-phenyl- (CAS 78920-21-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H8N2O and a molecular weight of 172.18300 g/mol. It is also known as 5-Phenylpyridazin-3(2H)-one, 5-Phenyl-2,3-dihydropyridazin-3-one and 4-phenyl-1H-pyridazin-6-one. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 78920-21-5
Jingsj CID: J-1568239-4
Molecular Formula: C₁₀H₈N₂O
Chinese Name: 5-苯基哒嗪-3(2H)-酮
Molecular Weight: 172.18300 g/mol
Category: Ketones
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 3(2H)-Pyridazinone, 5-phenyl-?

The CAS number of 3(2H)-Pyridazinone, 5-phenyl- is 78920-21-5.

What are the molecular formula and molecular weight of 3(2H)-Pyridazinone, 5-phenyl-?

3(2H)-Pyridazinone, 5-phenyl- has molecular formula C10H8N2O and molecular weight 172.18300 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "3(2H)-Pyridazinone, 5-phenyl- (CAS 78920-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1568239-4 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.