1,7-Dihydroxy-3-methoxyxanthen-9-one 437-50-3 5-18-04-00497 (Beilstein Handbook Reference) 9H-Xanthen-9-one, 1,7-dihydroxy-3-methoxy- BRN 0384788 CCRIS 3151 EINECS 207-114-1 GENTIANIC ACID Gentianin Gentisin Gentisine Xanthen-9-one, 1,7-dihydroxy-3-methoxy-