4H-1-Benzopyran-4-one, 7-hydroxy-2-(3,4,5-trimethoxyphenyl)- 66922-84-7 7-Hydroxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one 7-Hydroxy-3',4',5'-trimethoxyflavone AIDS-126782 AIDS126782 NSC127572