Synonyms: Acetoacetanilide,2,2'-[(3,3'-dichloro-4,4'-biphenylylene)bis(azo)]bis[2',5'-dimethoxy- (8CI);Butanamide,2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,5-dimethoxyphenyl)-3-oxo-(9CI); C.I. 21107:1; C.I. 21108:1; C.I. Pigment Yellow 83:1; C.I. PigmentYellow 87; Pigment Yellow 83:1; Pigment Yellow 87; Sunset Gold HC 1285