Synonyms: Cuprate, [μ-[[7,7'-[[6-(phenylamino)-1,3,5-triazine-2,4-diyl]diimino]bis[3-[(3-chloro-2-hydroxy-5-sulfophenyl)azo]-4-hydroxy-2-naphthalenesulfonato]]]]di-, tetrasodium;Cuprate,[μ-[[7,7'-[[6-(phenylamino)-1,3,5-triazine-2,4-diyl]diimino]bis[3-[(3-chloro-2-hydroxy-5-sulfophenyl)azo]-4-hydroxy-2-naphthalenesulfonato]]]]di-,tetrasodium