Synonyms: Cuprate(4-), (5-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-4-(hydroxy-kappaO)-3-(2-(2-(hydroxy-kappaO)-5-sulfophenyl)diazenyl-kappaN1)-2,7-naphthalenedisulfonato(6-))-, sodium (1:4);Copper complex with 1-hydroxy-2-(2'-hydroxy-5'-sulfophenylazo)-8-(4''-chloro-6''-(4'''-sulfophenylamino)-1'',3'',5''-triazinyl-2''-amino)-naphthalene-3,6-disulfonic acid, sodium salt;Cuprate(4-), (5-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-4-(hydroxy-kappaO)-3-((2-(hydroxy-kappaO)-5-sulfophenyl)azo-kappaN1)-2,7-naphthalenedisulfonato(6-))-, tetrasodium;Tetrasodium (5-((4-chloro-6-(4-sulphoanilino)-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-((2-hydroxy-5-sulphophenyl)azo)naphthalene-2,7-disulphonato(6-))cuprate(4-);copper(2+) sodium 5-({4-chloro-6-[(4-sulfonatophenyl)amino]-1,3,5-triazin-2-yl}amino)-4-oxido-3-[(E)-(2-oxido-5-sulfonatophenyl)diazenyl]naphthalene-2,7-disulfonate (1:4:1)