Product

1-(3-Sulfophenyl)-3-methyl-5-pyrazolone

CAS No.：119-17-5

Other grades of this product :

1-(3-Sulfophenyl)-3-methyl-5-pyrazolone Basic information

Product Name:	1-(3-Sulfophenyl)-3-methyl-5-pyrazolone
Synonyms:	1-(M-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE;1-(3'-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE;1-(3-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE;3-PYRAZOLIC ACID;(4,5-dihydro-3-methyl-5-oxo-1h-pyrazol-1-yl)benzenesulphonic acid;3-Methyl-1-(3-sulfophenyl)-2-pyrazolin-5-one;3-(5-keto-3-methyl-4H-pyrazol-1-yl)benzenesulfonic acid;Benzenesulfonic acid, 3-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-
CAS:	119-17-5
MF:	C10H10N2O4S
MW:	254.26
EINECS:	204-303-0
Product Categories:	Intermediates of Dyes and Pigments
Mol File:	119-17-5.mol

1-(3-Sulfophenyl)-3-methyl-5-pyrazolone Chemical Properties

Melting point	335 °C (lit.)
density	1.53±0.1 g/cm3(Predicted)
vapor pressure	0.001Pa at 20℃
storage temp.	2-8°C
form	Powder
pka	-0.73±0.30(Predicted)
LogP	-2.05 at 23℃
CAS DataBase Reference	119-17-5(CAS DataBase Reference)
EPA Substance Registry System	Benzenesulfonic acid, 3-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- (119-17-5)

Safety Information

Hazard Codes	Xi
Risk Statements	43
Safety Statements	36/37
WGK Germany	1

MSDS Information

Provider	Language
SigmaAldrich	English

1-(3-Sulfophenyl)-3-methyl-5-pyrazolone Usage And Synthesis

Chemical Properties	light yellow crystalline powder
Uses	1-(3-Sulfophenyl)-3-methyl-5-pyrazolone [1-(3′-sulfophenyl)-3-methyl-5-pyrazolone] may be used to synthesize α-Pigment Yellow 191.

1-(3-Sulfophenyl)-3-methyl-5-pyrazolone Preparation Products And Raw materials

Preparation Products

C.I. Direct orange 2-->ACID RED 183-->Reactive Yellow 105-->Acid Yellow 79-->Acid Red 186-->Benzoic acid, 5-[[[[3-carboxy-4-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]azo]phenyl]amino]carbonyl]amino]-2-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]-, trisodium salt-->Reactive Yellow 18

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