Pyridazin-4(1H)-one

4(1H)-哒嗪酮

Also known as: 1H-Pyridazin-4-one, 4(1H)-Pyridazinone, 4-Oxo-1,4-dihydropyridazine, Pyridazin-4-ol, 4-Pyridazinol, Pyridazine-4-one

Pyridazin-4(1H)-one (CAS 17417-57-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H4N2O and a molecular weight of 96.08740 g/mol. It is also known as 1H-Pyridazin-4-one, 4(1H)-Pyridazinone and 4-Oxo-1,4-dihydropyridazine. Key properties include a melting point of 252℃, a boiling point of 184.7±23.0℃ (760 Torr) and a density of 1.28±0.1 g/cm3 (20 C 760 Torr). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17417-57-1
Jingsj CID
J-1124790-4
Molecular Formula
C4H4N2O
Chinese Name
4(1H)-哒嗪酮
Molecular Weight
96.08740 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point252℃
Boiling Point184.7±23.0℃ (760 Torr)
Density1.28±0.1 g/cm3 (20 C 760 Torr)

Frequently Asked Questions

What is the CAS number of Pyridazin-4(1H)-one?

The CAS number of Pyridazin-4(1H)-one is 17417-57-1.

What are the molecular formula and molecular weight of Pyridazin-4(1H)-one?

Pyridazin-4(1H)-one has molecular formula C4H4N2O and molecular weight 96.08740 g/mol.

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

Last updated:

How to cite: Jingsj. "Pyridazin-4(1H)-one (CAS 17417-57-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1124790-4 (accessed 2026-10-24).

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