2-Naphthalenesulfonic acid, 5-((4-((4-nitro-2-sulfophenyl)amino)phenyl)azo)-8-((4-((phenylsulfonyl)oxy)phenyl)azo)-, disodium salt 72986-60-8 Disodium 5-((4-((4-nitro-2-sulphonatophenyl)amino)phenyl)azo)-8-((4-((phenylsulphonyl)oxy)phenyl)azo)naphthalene-2-sulphonate EINECS 277-176-2 Naphthalene-2-sulfonic acid, 5-((4-((4-nitro-2-sulfophenyl)amino)phenyl)azo)-8-((4-((phenylsulfonyl)oxy)phenyl)azo)-, disodium salt