Molecular properties
- Formula
- C3H4N2O
- Molar mass
- 84.08 g·mol−1
- Exact mass
- 84.0324 Da
- 3
- PubChem CID
- 351317
Molecule record
1,2-dihydropyrazol-3-one
C3H4N2O
84.08 g/mol
Loading structure
Functional groups
No functional-group assignment has been curated yet.
Physical properties
No source-backed physical properties are curated for this molecule yet.
Common names and synonyms
- 1,2-Dihydro-3H-pyrazol-3-one
- 137-45-1
- 1H-Pyrazol-3-ol
- 1H-Pyrazol-5-ol
- 1H-pyrazol-3(2H)-one
- 2,3-dihydro-1H-pyrazol-3-one
- 2H-Pyrazol-3-ol
- 3-Hydroxypyrazole
Show all 24 synonyms
- 3-Pyrazolin-5-one
- 3-Pyrazolone
- 5-Hydroxy-1H-pyrazole
- 5-Hydroxy-pyrazole
- 5-hydroxypyrazole
- 60456-92-0
- 60456-93-1
- 800-331-8
- 878-599-0
- DTXCID601358399
- DTXSID90929655
- MFCD00629300
- MFCD20527386
- Pyrazol-5-ol
- Pyrazolinone
- RefChem:438904
Structure identifiers
- Canonical SMILES
- O=c1cc[nH][nH]1
- Isomeric SMILES
- C1=CNNC1=O
- InChI
- InChI=1S/C3H4N2O/c6-3-1-2-4-5-3/h1-2H,(H2,4,5,6)
- InChIKey
- XBYRMPXUBGMOJC-UHFFFAOYSA-N
- PubChem CID
- 351317
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 1,2-dihydropyrazol-3-one; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for 1,2-dihydropyrazol-3-one; not experimental data.
Sources
Molecule identity
Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.