73297-10-6 Cobaltate(3-), bis(6-(amino-kappaN)-5-((2-(hydroxy-kappaO)-3,5-dinitrophenyl)azo-kappaN1)-1-naphthalenesulfonato(3-))-, sodium dihydrogen Cobaltate(3-), bis(6-amino-5-((2-hydroxy-3,5-dinitrophenyl)azo)-1-naphthalenesulfonato(3-))-, sodium dihydrogen