5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one

Modify Date: 2025-08-24 15:56:29

5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one Structure
5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one structure
Common Name 5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one
CAS Number 19735-89-8 Molecular Weight 174.199
Density 1.2±0.1 g/cm3 Boiling Point 276.4±23.0 °C at 760 mmHg
Molecular Formula C10H10N2O Melting Point N/A
MSDS N/A Flash Point 121.0±22.6 °C

 Names

Name 5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.2±0.1 g/cm3
Boiling Point 276.4±23.0 °C at 760 mmHg
Molecular Formula C10H10N2O
Molecular Weight 174.199
Flash Point 121.0±22.6 °C
Exact Mass 174.079315
PSA 37.79000
LogP 1.72
Vapour Pressure 0.0±0.6 mmHg at 25°C
Index of Refraction 1.587

 Safety Information

HS Code 2933199090

 Customs

HS Code 2933199090
Summary 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

1-Phenyl-3-methylpyrazol-5-one
3-methyl-1-phenyl-5-oxo-2,5-dihydro-1H-pyrazole
5-Methyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one
3-methyl-1-phenyl-3-pyrazolin-5-one
3-Methyl-1-phenyl-5-pyrazolone
3-methyl-1-phenyl-pyrazol-5-one
3H-Pyrazol-3-one, 1,2-dihydro-5-methyl-2-phenyl-
5-Methyl-2-phenyl-1,2-dihydro-3H-pyrazole-3-one
1-Phenyl-3-methyl-1H-pyrazole-5(2H)-one
2-phenyl-5-methyl-pyrazol-3-one
1,2-dihydro-5-methyl-2-phenyl-3h-pyrazol-3-one
1,2-Dihydro-5-methyl
1-PHENYL-3-METHYL-5-PYRAZOLONE
2-Phenyl-5-methyl-1,2-dihydro-3H-pyrazole-3-one
2-Phenyl-5-methyl-1H-pyrazole-3(2H)-one
EINECS 243-261-8
Edaravone Impurity 12
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