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Orange No.204

Legal color:Orange No.204 
General name:Benzidine Orange G   
Class:Pigment
FDA :  
CI #:C.I. 21110
Color #:Pig. Orange 13
CAS #:3520-72-7
CAS :3H-Pyrazol-3-one,4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4- dihydro-5-methyl-2-phenyl-
IUPAC:→1;3,3'-Dichloro-4,4'-bi[(3,4-dihydro-5-methyl-3-oxo-2-phenyl)
pyrazolin-4-ylazo]-1,1'-biphenyl
Chemical structure :

Benzidine Orange G