C.I.20485;Naphthylamine Black 5GL;disodium 4-amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[(2-phenoxyphenyl)azo]naphthalene-2,7-disulphonate;disodium 4-amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[(2-phenoxyphenyl)azo]naphthalene-2,7-disulphonate;4-Amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[(2-phenoxyphenyl)azo]naphthalene-2,7-disulfonic acid disodium salt