Acid brown 417;Einecs 280-483-4;C.I.Acid Brown 417;disodium 4,4'-[(4,6-dihydroxy-1,3-phenylene)bis(azo)]bis(benzenesulphonate);4,4'-[(4,6-Dihydroxy-1,3-phenylene)bis(azo)]bis(benzenesulfonic acid)disodium salt;Benzenesulfonic acid,4,4'-[(4,6-dihydroxy-1,3-phenylene)bis(azo)]bis-, disodium salt (9CI)