2-[(6-{[4-(N-{6-[(2,5-Dicarboxyphenyl)diazenyl]-5-hydroxy-7-sulfo(2-naphthyl)}carbamoyl)phenyl]carbonylamino}-1-hydroxy-3-sulfo-2-naphthyl)diazenyl]benzene-1,4-dicarboxylic acid AIDS-104460 AIDS104460