1-{4-[(6-{[N-(6-{[4-(1,2-Dicarboxyethyl)phenyl]diazenyl}-5-hydroxy-7-sulfo(2-naphthyl))carbamoyl]carbonylamino}-1-hydroxy-3-sulfo-2-naphthyl)diazenyl]phenyl}ethane-1,2-dicarboxylic acid AIDS-104499 AIDS104499