ChemicalBook--->CAS DataBase List--->19735-89-8

19735-89-8

19735-89-8 Structure

19735-89-8 Structure
IdentificationBack Directory
[Name]

1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one
[CAS]

19735-89-8
[Synonyms]

1,2-Dihydro-5-methyl
Edaravone Impurity 16
Edaravone Related Compound
Edaravone Related Compound 1
1-PHENYL-3-METHYL-5-PYRAZOLONE
5-Methyl-2-phenyl-1H-pyrazol-3(2H)-one
1-Phenyl-3-methyl-1H-pyrazole-5(2H)-one
2-Phenyl-5-methyl-1H-pyrazole-3(2H)-one
5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one
1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-on
5-Methyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one
1,2-dihydro-5-methyl-2-phenyl-3h-pyrazol-3-one
3H-Pyrazol-3-one,1,2-dihydro-5-methyl-2-phenyl-
5-Methyl-2-phenyl-1,2-dihydro-3H-pyrazole-3-one
2-Phenyl-5-methyl-1,2-dihydro-3H-pyrazole-3-one
2-(1-cyclohexa-2,4-dienyl)-5-methyl-3-pyrazol-2-iumone
19735-89-8 1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one
[EINECS(EC#)]

243-261-8
[Molecular Formula]

C10H10N2O
[MDL Number]

MFCD00127930
[MOL File]

19735-89-8.mol
[Molecular Weight]

174.2
Chemical PropertiesBack Directory
[Melting point ]

128°C
[Boiling point ]

305.17°C (rough estimate)
[density ]

1.2600
[refractive index ]

1.6370 (estimate)
[pka]

0.10±0.40(Predicted)
[CAS DataBase Reference]

19735-89-8
[EPA Substance Registry System]

3H-Pyrazol-3-one, 1,2-dihydro-5-methyl-2-phenyl- (19735-89-8)
Questions And AnswerBack Directory
[Uses]

1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one is an important class of heterocyclic compounds with physiological functions. It can be used as an antipyretic, analgesic, and antibacterial agent, as well as an analytical reagent, an antioxidant for rubber and flaxseed, and a dye for textiles.
[Application]

1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one is an important intermediate that can be used as a raw material for the preparation of 4,4′-arylmethylene-bis(1-phenyl-3-methyl-5-pyrazolone).
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P305+P351+P338
Raw materials And Preparation ProductsBack Directory
[Preparation Products]

Solvent Yellow 21-->Acid Red 226-->Acid violet 90-->Acid Orange 89-->Acid Yellow 42-->Solvent Yellow 18-->2,4-Dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one chromium complex-->Solvent Red 8-->Solvent Yellow 16-->4-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)methyl]-1,2-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one-->3-Methyl-1-phenyl-1H-pyrazole-4-carboxaldehyde, 97%-->5-Chloro-3-methyl-1-phenylpyrazole-->Bispyrazolone-->ANTIPYRINE-D3
Hazard InformationBack Directory
[Definition]

ChEBI: Demethylated antipyrine is a ring assembly and a member of pyrazoles.
Spectrum DetailBack Directory
[Spectrum Detail]

1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one(19735-89-8)1HNMR
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