5,6-dihydroxy-4',7,8-trimethoxyflavone

5,6,7,8-tetramethoxy-2-(4-methoxy-phenyl)-chroman-4-one

1-(2,5-dihydroxy-3,4,6-trimethoxyphenyl)ethanone

4-甲氧基苯甲酸酐

6-hydroxy-4',5,7,8-tetramethoxyflavone