Synonyms: 1,8-Dihydroxy-2,6-dimethoxy-9H-xanthen-9-one;9H-Xanthen-9-one,1,8-dihydroxy-2,6-dimethoxy-;1,8-dihydroxy-2,6-dimethoxyxanthen-9-one;1,8-dihydroxy-2,6-dimethoxyxanthone;1,8-dihydroxy-3,7-dimethoxyxanthone;2-O-Methylswertianin;7-O-methyl swertianin;Methylswertianin;metylswertianin;Swertiaperennin;swertsiaperennin;Xanthen-9-one,1,8-dihydroxy-2,6-dimethoxy;1,8-Dihydroxy-3,7-dimethoxyxanthen-9-one;1,8-Dihydroxy-3,7-dimethoxyxanthone;1,8-Dihydroxy-2,6-dimethoxyxanthone;Svercyaperenin;Swertiaperenine