Product Name

  • Name

    Pigment Yellow 191

  • EINECS 403-530-4
  • CAS No. 129423-54-7
  • Density 1.64[at 20℃]
  • Solubility 94.5mg/L at 20℃
  • Melting Point
  • Formula C17H13CaClN4O7S2
  • Boiling Point
  • Molecular Weight 524.97
  • Flash Point
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 129423-54-7 (Pigment Yellow 191)
  • Hazard Symbols
  • 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;
  • PSA 193.93000
  • LogP 6.01410

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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