1,8-Dihydroxy-3,5-dimethoxy-9H-xanthen-9-one 1,8-Dihydroxy-3,5-dimethoxyxanthen-9-one 5-18-05-00194 (Beilstein Handbook Reference) 521-65-3 9H-Xanthen-9-one, 1,8-dihydroxy-3,5-dimethoxy- (9CI) BRN 0313581 Methylbellidifolin Swerchirin Xanthen-9-one, 1,8-dihydroxy-3,5-dimethoxy-