Molecular properties
- Formula
- C4H4N2O
- Molar mass
- 96.09 g·mol−1
- Exact mass
- 96.0324 Da
- 4
- PubChem CID
- 72758
Molecule record
1H-pyrazin-2-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
- 1,2-dihydropyrazin-2-one
- 124784-76-5
- 2(1H)-Pyrazinone
- 2-Hydroxypyrazine
- 2-Pyrazinol
- 2-Pyrazinol #
- 6270-63-9
- AC-907/25004286
Show all 24 synonyms
- CS-0166867
- DTXSID10211781
- EINECS 228-455-2
- MFCD00233966
- N5VLE8C2MU
- NSC-36081
- NSC36081
- PYRAZINE-2-OL
- PYRAZINONE
- Pyrazin-2-ol
- Pyrazinol
- Pyrazinol (9CI)
- RefChem:870460
- hydroxy pyrazine
- pyrazin-2(1H)-one
- pyrazinium-3-olate
Structure identifiers
- Canonical SMILES
- O=c1cncc[nH]1
- Isomeric SMILES
- C1=CN=CC(=O)N1
- InChI
- InChI=1S/C4H4N2O/c7-4-3-5-1-2-6-4/h1-3H,(H,6,7)
- InChIKey
- HUTNOYOBQPAKIA-UHFFFAOYSA-N
- PubChem CID
- 72758
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-pyrazin-2-one; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for 1H-pyrazin-2-one; not experimental data.
Sources
Molecule identity
Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.