2-({6-[(N-{6-[(2-Carboxy-4,5-dimethoxyphenyl)diazenyl]-5-hydroxy-7-sulfo(2-naphthyl)}carbamoyl)amino]-1-hydroxy-3-sulfo(2-naphthyl)}diazenyl)-4,5-dimethoxybenzoic acid AIDS-104411 AIDS104411