Synonyms: Cuprate(3-), (4-amino-5-(hydroxy-kappaO)-6-(2-(2-(hydroxy-kappaO)-4-sulfo-6-((2,5,6-trichloro-4-pyrimidinyl)amino)-1-naphthalenyl)diazenyl-kappaN1)-1,3-naphthalenedisulfonato(5-))-, sodium (1:3);(4-Amino-5-hydroxy-6-((2-hydroxy-4-sulfo-6-((2,5,6-trichloro-4-pyrimidinyl)amino)-1-naphthalenyl)azo)-1,3-naphthalenedisulfonato(5-))cuprate(3-), trisodium;Cuprate(3-), (4-amino-5-(hydroxy-kappaO)-6-((2-(hydroxy-kappaO)-4-sulfo-6-((2,5,6-trichloro-4-pyrimidinyl)amino)-1-naphthalenyl)azo-kappaN1)-1,3-naphthalenedisulfonato(5-))-, trisodium;Cuprate(3-), (4-amino-5-hydroxy-6-((2-hydroxy-4-sulfo-6-((2,5,6-trichloro-4-pyrimidinyl)amino)-1-naphthalenyl)azo)-1,3-naphthalenedisulfonato(5-))-, trisodium;Trisodium (4-amino-5-hydroxy-6-((2-hydroxy-4-sulpho-6-((2,5,6-trichloro-4-pyrimidinyl)amino)-1-naphthyl)azo)naphthalene-1,3-disulphonato(5-))cuprate(3-);copper(2+) sodium 4-amino-5-oxido-6-[(E)-{2-oxido-4-sulfonato-6-[(2,5,6-trichloropyrimidin-4-yl)amino]naphthalen-1-yl}diazenyl]naphthalene-1,3-disulfonate (1:3:1)