13011-70-6 16143-77-4 37279-53-1 Cuprate(4-), (mu-((5,5'-(carbonylbis(imino(2-(hydroxy-kappaO)-5-sulfo-4,1-phenylene)azo-kappaN1))bis(6-(hydroxy-kappaO)-2-naphthalenesulfonato))(8-)))di-, tetraammonium EINECS 235-863-4 Tetraammonium (mu-((5,5'-(carbonylbis(imino(2-hydroxy-5-sulpho-p-phenylene)azo))bis(6-hydroxynaphthalene-2-sulphonato))(8-)))dicuprate(4-)