80448-87-9 Cuprate(4-), (mu-((7,7'-((6-(phenylamino)-1,3,5-triazine-2,4-diyl)diimino)bis(4-(hydroxy-kappaO)-3-((2-(hydroxy-kappaO)-5-sulfophenyl)azo-kappaN1)-2-naphthalenesulfonato))(8-)))di-, tetrasodium