3-[(6-{[6-(N-{6-[(3-Carboxyphenyl)diazenyl]-5-hydroxy-7-sulfo(2-naphthyl)}carbamoyl)-4-hydroxy(2-pyridyl)]carbonylamino}-1-hydroxy-3-sulfo-2-naphthyl)diazenyl]benzoic acid AIDS-104443 AIDS104443