Molecular properties
- Formula
- C4H4N2O
- Molar mass
- 96.09 g·mol−1
- Exact mass
- 96.0324 Da
- 4
- PubChem CID
- 565900
Molecule record
1H-pyridazin-4-one
C4H4N2O
96.09 g/mol
Loading structure
Functional groups
Aromatic ring
Physical properties
No source-backed physical properties are curated for this molecule yet.
Common names and synonyms
- 1,4-Dihydro-4-oxopyridazine
- 1,4-dihydropyridazin-4-one
- 17417-57-1
- 1h-4-pyridazinone
- 20733-10-2
- 4(1H)-Pyridazinone
- 4(1H)-Pyridazinone #
- 4-Oxo-1,4-dihydropyridazin
Show all 24 synonyms
- 4-hydroxypyridazine
- 4-pyridazinol
- 820-429-4
- A1JDY
- AMY3028
- MFCD00233967
- MFCD19703833
- NoName_1717
- Pyridazin-4(1H)-one
- Pyridazine-4-one
- RefChem:870540
- SCHEMBL276906
- SCHEMBL276907
- SCHEMBL359695
- pyridazin-4-ol
- pyridazine, 4-hydroxy-
Structure identifiers
- Canonical SMILES
- O=c1cc[nH]nc1
- Isomeric SMILES
- C1=CNN=CC1=O
- InChI
- InChI=1S/C4H4N2O/c7-4-1-2-5-6-3-4/h1-3H,(H,5,7)
- InChIKey
- VHVUTJZQFZBIRR-UHFFFAOYSA-N
- PubChem CID
- 565900
Spectroscopy
Tabs appear only for spectra stored with clear provenance.
No redistributable or simulated spectroscopy record is attached yet.
Simulated NMR
On-demand educational prediction for 1H-pyridazin-4-one; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for 1H-pyridazin-4-one; not experimental data.
Sources
Molecule identity
Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.