85650-71-1 EINECS 288-081-0 Hydrogen (1-((5-(ethylsulphonyl)-2-hydroxyphenyl)azo)-2-naphtholato(2-))(methyl (8-((5-(ethylsulphonyl)-2-hydroxyphenyl)azo)-7-hydroxy-1-naphthyl)methylcarbamato(2-))cobaltate(1-)