Acid Orang 51; Acid Red Brown 5K; Baygenal Red Brown LNZR; Nylomine Acid Brown C-R; Telon Fast Copper Red RL; C.I. Acid Orange 51; Acid Orange 51 (C.I.); disodium 5(or 8)-(3-methyl-4-(4-methylphenylsulphonyloxy)phenylazo)-8(or 5)-(4-(4-nitro-2-sulphophenylamino)phenylazo)naphthalene-2-sulphonate; Benzenesulfonic acid, 5(or 8)-(2-(3-methyl-4-(((4-methylphenyl)sulfonyl)oxy)phenyl)diazenyl)-8(or 5)-(2-(4-((4-nitro-2-sulfophenyl)amino)phenyl)diazenyl)-, sodium salt (1:2)
