disodium 7-[[3-[(4-aminobenzoyl)amino]benzoyl]amino]-4-hydroxy-3-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate 7-[[3-[(4-Aminobenzoyl)amino]benzoyl]amino]-4-hydroxy-3-[[4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-2-sulfonic acid sodium salt Benzamin Red 5B C.I.28360 C.I.Direct Red 152 Diazine Red 5BL Nyagene Red 5BL Pontamine Diazo Red 5BL