6-[(6-{[6-(N-{6-[(2-Carboxy-3,4,5-trimethoxyphenyl)diazenyl]-5-hydroxy-7-sulfo(2-naphthyl)}carbamoyl)(2-pyridyl)]carbonylamino}-1-hydroxy-3-sulfo(2-naphthyl))diazenyl]-2,3,4-trimethoxybenzoic acid AIDS-104431 AIDS104431