Synonyms: Cuprate(4-), (3-(2-(8-((4-chloro-6-((2-methylphenyl)amino)-1,3,5-triazin-2-yl)amino)-1-(hydroxy-kappaO)-3,6-disulfo-2-naphthalenyl)diazenyl-kappaN1)-4-(hydroxy-kappaO)-1,5-naphthalenedisulfonato(6-))-, sodium (1:4);Cuprate(4-), (3-((8-((4-chloro-6-((2-methylphenyl)amino)-1,3,5-triazin-2-yl)amino)-1-(hydroxy-kappaO)-3,6-disulfo-2-naphthalenyl)azo-kappaN1)-4-(hydroxy-kappaO)-1,5-naphthalenedisulfonato(6-))-, tetrasodium;Tetrasodium (3-((8-((4-chloro-6-(o-toluidino)-1,3,5-triazin-2-yl)amino)-1-hydroxy-3,6-disulpho-2-naphthyl)azo)-4-hydroxynaphthalene-1,5-disulphonato(6-))cuprate(4-);copper(2+) sodium 3-{(E)-[8-({4-chloro-6-[(2-methylphenyl)amino]-1,3,5-triazin-2-yl}amino)-1-oxido-3,6-disulfonatonaphthalen-2-yl]diazenyl}-4-oxidonaphthalene-1,5-disulfonate (1:4:1)