- Chemical Name:1H-Pyrazol-5(4H)-one
- CAS No.:137-44-0
- Molecular Formula:C3H4N2O
- Molecular Weight:84.0776
- Hs Code.:2933199090
- European Community (EC) Number:824-477-7
- NSC Number:243823
- UNII:W43TJN4CTB
- DSSTox Substance ID:DTXSID00311547
- Nikkaji Number:J5.630H
- Wikidata:Q72503477
- Mol file:137-44-0.mol
Synonyms:1H-Pyrazol-5(4H)-one;137-44-0;5-Pyrazolone;4H-Pyrazol-3-ol;2-Pyrazolin-5-one;1,4-dihydropyrazol-5-one;2,4-dihydro-3H-pyrazol-3-one;3H-Pyrazol-3-one, 2,4-dihydro-;MFCD00127223;NSC-243823;145091-85-6;Pirazolone;NSC243823;W43TJN4CTB;4,5-dihydro-1H-pyrazol-5-one;DTXSID00311547;AMY11924;AKOS006274135;CS-W004408;AC-11517;SY211686;FT-0692805;P2563;31470-09-4