Synonyms:
c.i. pigment yellow 63 ; butanamide,2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[n-(2-chlorophenyl)-3-oxo- ; 2,2'-[(3,3'-dichloro-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[n-(2-chlorophenyl)-3-oxobutanamide] ; pigment yellow 63 ; 2-[2-chloro-4-[3-chloro-4-[1-[(2-chlorophenyl)amino]-1,3-dioxobutan-2-yl]diazenylphenyl]phenyl]diazenyl-n-(2-chlorophenyl)-3-oxobutanamide ; c.i. pigment yellow 121 ; 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[n-(2-chlorophenyl)-3-oxobutyramide] ; acetoacetanilide,2,2''-[(3,3'-dichloro-4,4'-biphenylylene)bis(azo)]bis[2'-chloro- (6ci,8ci) ; butanamide,2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[n-(2-chlorophenyl)-3-oxo-(9ci) ; 4,4'-bis[acetoaceto(2-chloroanilid)-2-ylazo]-3,3'-dichlorobiphenyl ; c. i. pigment yellow 63 ; butanamide, 2,2-(3,3-dichloro1,1-biphenyl-4,4-diyl)bis(azo)bisn-(2-chlorophenyl)-3-oxo- ; pigment yellow 121 ; c.i. 21091
