83846-99-5 EINECS 281-080-6 Pentasodium 5-((4-((4-((4-((4-((3-carboxylato-4-hydroxyphenyl)azo)sulphonato-1-naphthyl)azo)phenyl)amino)-3-sulphonatophenyl)azo)sulphonato-1-naphthyl)azo)salicylate