4-Hydroxy-7-{[(5-hydroxy-6-{[2-iodo-4-(methoxycarbonyl)phenyl]diazenyl}-7-sulfo(2-naphthyl))amino]carbonylamino}-3-{[2-iodo-4-(methoxycarbonyl)phenyl]diazenyl}naphthalene-2-sulfonic acid AIDS-104398 AIDS104398