4-[(6-{[6-(N-{6-[(4-Carboxy-2-methylphenyl)diazenyl]-5-hydroxy-7-sulfo(2-naphthyl)}carbamoyl)-4-oxopyran-2-yl]carbonylamino}-1-hydroxy-3-sulfo(2-naphthyl))diazenyl]-3-methylbenzoic acid AIDS-104441 AIDS104441