4-[(2,4-Dimethylphenyl)azo]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one CAS#: 6407-78-9

4-[(2,4-Dimethylphenyl)azo]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one Basic information

Product Name:

4-[(2,4-Dimethylphenyl)azo]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one

Synonyms:

4-[(2,4-dimethylphenyl)azo]-2,4-dihydro-5-methyl-2-phenyl-3h-pyrazol-3-one
c.i. 12740
solvent yellow 18
2-Phenyl-4-(2,4-dimethylphenylazo)-5-methyl-2H-pyrazole-3(4H)-one
C.I.Food Yellow 12
3H-Pyrazol-3-one, 4-[2-(2,4-dimethylphenyl)diazenyl]-2,4-dihydro-5-methyl-2-phenyl-
Transparent yellow GR
C.I.Food Yellow 12:C.I.12740

CAS:

6407-78-9

MF:

C18H18N4O

MW:

306.36

EINECS:

229-043-5

Mol File:

6407-78-9.mol

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4-[(2,4-Dimethylphenyl)azo]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one Chemical Properties

Boiling point:: 497.8±45.0 °C(Predicted)
Density: 1.19
vapor pressure: 0Pa at 25℃
pka: 1.45±0.70(Predicted)
Water Solubility: 62.94μg/L at 25℃
LogP: 5.65 at 25℃
EPA Substance Registry System: 3H-Pyrazol-3-one, 4-[(2,4-dimethylphenyl)azo]-2,4-dihydro-5-methyl-2-phenyl- (6407-78-9)

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4-[(2,4-Dimethylphenyl)azo]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one Usage And Synthesis

Uses

Solvent Yellow 18 is used in preparation methods of altering the refractive index of a lens using a polymer matrix.

Preparation

2,4-Dimethylbenzenamine diazo, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one?coupling.

Flammability and Explosibility

Not classified

Properties and Applications

red light yellow to yellow. Insoluble in water, slightly soluble in alcohol. And C.I. Solvent yellow 18 the same chemical structure.

4-[(2,4-Dimethylphenyl)azo]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-oneSupplier

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