4-Amino-3-((4'-((1-amino-5-sulfo-2-naphthyl)diazenyl)[1,1'-biphenyl]-4-yl)diazenyl)-5-hydroxy-6-(phenyldiazenyl)-2,7-naphthalenedisulfonic acid 6486-54-0 (TRISODIUM SALT) AIDS-156003 AIDS156003 C.I. Direct Black 131 Erie Black CW (*Trisodium salt*) NSC79745 (TRISODIUM SALT) Paradiamine Blue Black 3B (*Trisodium salt*) Paradiamine Blue Black 3B Extra Conc Pontamine Black AWG (*Trisodium salt*) Special Black 3G (*Trisodium salt*)