(2E)-3-(4-{[6-({4-[(6-{[4-((1E)-2-Carboxyvinyl)phenyl]diazenyl}-5-hydroxy-7-sulfo(2-naphthyl))amino]-2,3-dioxocyclobut-1(4)-enyl}amino)-1-hydroxy-3-sulfo(2-naphthyl)]diazenyl}phenyl)prop-2-enoic acid AIDS-104472 AIDS104472