1,2,8-Trihydroxy-6-methoxy-9H-xanthen-9-one 20882-75-1 5-18-05-00186 (Beilstein Handbook Reference) 6-Methoxy-1,2,8-trihydroxyxanthen-9-one 9H-Xanthen-9-one, 1,2,8-trihydroxy-6-methoxy- (9CI) BRN 1351024 Gentiakochianin NSC 289490 Swertianin Xanthen-9-one, 6-methoxy-1,2,8-trihydroxy-