85269-53-0 Cuprate(4-), (mu-((7,7'-((6-chloro-1,3,5-triazine-2,6-diyl)diimino)bis(3-((3-chloro-2-hydroxy-5-sulfophenyl)azo)-4-hydroxy-2-naphthalenesulfonato))(8-)))di-, tetrasodium