6-(4-{[6-({6-[N-(6-{[4-(5-Carboxypentyl)phenyl]diazenyl}-5-hydroxy-7-sulfo(2-naphthyl))carbamoyl](2-pyridyl)}carbonylamino)-1-hydroxy-3-sulfo-2-naphthyl]diazenyl}phenyl)hexanoic acid AIDS-104427 AIDS104427