129423-54-7 Pigment Yellow 191

product Name	Pigment Yellow 191
CAS No	129423-54-7
Synonyms	-; C.I. Pigment Yellow 191; Pigment Brilliant Yellow HGR; c.i. 18795; 4-Chloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]azo]-5-methylbenzenesulfonic acid calcium salt (1:1); PYRAZOLONE YELLOW HGR; Benzenesulfonic acid, 4-chloro-2-4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-ylazo-5-methyl-, calcium salt (1:1); Pigment -- Pigment Yellow 191; 4-Chloro-2-[5-hydroxy-3-methyl-1-(3-sulfophe- nyl)pyrazol-4-ylazo]-5-methylbenzene sulfonic acid, calcium salt
Molecular Formula	C₁₇H₁₃CaClN₄O₇S₂
Molecular Weight	524.97
EINECS	403-530-4
Molecular Structure
Hazard Symbols
Risk Codes
Safety Description

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