(4-((4-Chloro-3-sulphophenyl)azo)-3-hydroxy-2-naphthoato(2-))manganese 12227-59-7 64552-28-9 97692-40-5 EINECS 264-942-6 Manganese, (4-((4-chloro-3-sulfophenyl)azo-kappaN1)-3-(hydroxy-kappaO)-2-naphthalenecarboxylato(2-))-