3-[(6-{[4-(N-{6-[(3-Carboxy-6-chlorophenyl)diazenyl]-5-hydroxy-7-sulfo(2-naphthyl)}carbamoyl)phenyl]carbonylamino}-1-hydroxy-3-sulfo(2-naphthyl))diazenyl]-4-chlorobenzoic acid AIDS-104459 AIDS104459