73507-27-4 Cuprate(6-), (mu-(4-((8-((4-chloro-6-((3-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo)-4'-((1-hydroxy-3,6,8-trisulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-3,3'-dicarboxylato(10-)))di-, hexasodium EINECS 277-501-8