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Name	Pigment Yellow 191	EINECS	403-530-4
CAS No.	129423-54-7	Density	1.64[at 20℃]
PSA	193.93000	LogP	6.01410
Solubility	94.5mg/L at 20℃	Melting Point	N/A
Formula	C₁₇H₁₃CaClN₄O₇S₂	Boiling Point	N/A
Molecular Weight	524.97	Flash Point	N/A
Transport Information	N/A	Appearance	N/A
Safety		Risk Codes	N/A
Molecular Structure		Hazard Symbols	N/A
Synonyms	Benzenesulfonicacid,4-chloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]azo]-5-methyl-,calcium salt (1:1) (9CI);C.I. 18795;C.I. Pigment Yellow 191;PV Fast YellowHGR;PY 191;Yellow HGR;

Pigment Yellow 191 Chemical Properties

Molecular Formula: C₁₇H₁₃CaClN₄O₇S₂
Molecular Weight: 524.97
CAS Registry Number: 129423-54-7
EINECS: 403-530-4
Structure of Benzenesulfonic acid,4-chloro-2-[2-[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-5-methyl-,calcium salt (1:1) (CAS NO.129423-54-7):

Synonyms of Benzenesulfonic acid,4-chloro-2-[2-[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-5-methyl-,calcium salt (1:1) (CAS NO.129423-54-7): Pigment Yellow 191 ; Pigment Brilliant Yellow HGR ; 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) ; Pigment -- Pigment Yellow 191 ; 4-Chloro-2-[5-hydroxy-3-methyl-1-(3-sulfophe- nyl)pyrazol-4-ylazo]-5-methylbenzene sulfonic acid, calcium salt

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