15485-76-4 4H-1-Benzopyran-2-carboxylic acid, 5, 7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-, ethyl ester AIDS-125895 AIDS125895 Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate NSC88178