Synonyms: 3,3'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-anilino-N,N,N-trimethyl-2,4-dioxobutylammonium] dichloride;3,3'-((3,3'-Dichloro(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4-anilino-N,N,N-trimethyl-2,4-dioxobutylammonium) dichloride;Einecs 284-996-4