Pigment Yellow 191

CAS NO:3520-72-7

EC NO:222-530-3

Molecular Formula:C₃₂H₂₄Cl₂N₈O₂

Molecular Weight:623.4914

Synonyms:;C.I. 21110;C.I. Pigment Orange 13;Benzidine orange;4,4'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one];PIGMENT ORANGE 13;PYRAZOLONE ORANGE;4-dihydro-5-methyl-2-phenyl-;atulvulcanfastpigmentorangeg;benzidineorange;benzidineorange45-2850;FAST ORANGE G;Pigment Orange 13 (21110);(4E,4'E)-4,4'-[(3,3'-dichlorobiphenyl-4,4'-diyl)di(1E)hydrazin-2-yl-1-ylidene]bis(5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one);4,4'-[(3,3'-dichlorobiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one);

Molecular Structure:

CAS NO:129423-54-7

EC NO:403-530-4

Molecular Formula:C₁₇H₁₃CaClN₄O₇S₂

Molecular Weight:524.97

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 Structure: