Synonyms: Cuprate(3-), (4-(hydroxy-kappaO)-3-(2-(3-(hydroxy-kappaO)-4'-(2-(1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl)diazenyl)-3'-methoxy(1,1'-biphenyl)-4-yl)diazenyl-kappaN1)-1,5-naphthalenedisulfonato(5-))-, sodium (1:3);Cuprate(3-), (3-((3-hydroxy-4'-((1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl)azo)-3'-methoxy-(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-1,5-naphthalendisulfonato(5-))-, trisodium;Cuprate(3-), (4-(hydroxy-kappaO)-3-((3-(hydroxy-kappaO)-4'-((1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl)azo)-3'-methoxy(1,1'-biphenyl)-4-yl)azo-kappaN1)-1,5-naphthalenedisulfonato(5-))-, trisodium;Trisodium (3-((4'-((6-anilino-1-hydroxy-3-sulpho-2-naphthyl)azo)-3-hydroxy-3'-methoxy(1,1'-biphenyl)-4-yl)azo)-4-hydroxynaphthalene-1,5-disulphonato(5-))cuprate(3-);copper(2+) sodium 3-[(E)-(3'-methoxy-3-oxido-4'-{(E)-[6-(phenylamino)-3-sulfonatonaphthalen-2-yl]diazenyl}biphenyl-4-yl)diazenyl]-4-oxidonaphthalene-1,5-disulfonate (1:3:1)