2-({6-[(N-{6-[(2-Carboxy-4,5,6-trimethoxyphenyl)diazenyl]-5-hydroxy-7-sulfo(2-naphthyl)}carbamoyl)carbonylamino]-1-hydroxy-3-sulfo(2-naphthyl)}diazenyl)-3,4,5-trimethoxybenzoic acid AIDS-104504 AIDS104504