64611-71-8 Cobaltate(1-), bis(1-((2-(hydroxy-kappaO)-4-nitrophenyl)azo-kappaN1)-2-naphthalenolato(2-)-kappaO)-, sodium Cobaltate(1-), bis(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphthalenolato(2-))-, sodium Cobaltate, bis(2-((2-hydroxy-1-naphthalenyl)azo)-5-nitrophenolato(2-))-, sodium EINECS 264-965-1 Sodium bis(1-((2-hydroxy-4-nitrophenyl)azo)naphthalen-2-olato(2-))cobaltate(1-)