1-Naphthalenesulfonic acid, 4-hydroxy-3-[[4-[(4-sulfo-o-tolyl)azo]-o-tolyl]azo]- 1-Naphthalenesulfonic acid, {4-hydroxy-3-[[2-methyl-4-[(2-methyl-4-sulfophenyl)azo]phenyl]azo]-} , disodium salt 1-Naphthalenesulfonic acid, {4-hydroxy-3-[[4-[(4-sulfo-o-tolyl)azo]-o-tolyl]azo]-,} disodium salt 4-Hydroxy-3-((2-methyl-4-((2-methyl-4-sulfophenyl)diazenyl)phenyl)diazenyl)-1-naphthalenesulfonic acid 5432-31-5 (DISODIUM SALT) AIDS-155873 AIDS155873 C.I. 26670 Lithol Bordeaux BN Lithol Bordeaux BN(*disodium salt*) Lithol Orange BN Lithol Orange BN(*disodium salt*) NSC9860 (DISODIUM SALT) Orseillin BB Orseilline BB Orseilline BB(*disodium salt*)