1,3,5,8-四羟基-2,4-双(3-甲基-2-丁烯基)-9H-氧杂蒽-9-酮

3-溴-2,5,6-三甲氧基苯甲酸

1,3-dihydroxy-5,8-dimethoxyxanthen-9-one

1,2,6,8-tetramethoxyxanthen-9-one

去甲基雏菊叶龙胆酮