1,3-Dioxolo(4,5-g)furo(2,3-b)quinoline, 4,9-dimethoxy- 4,9-Dimethoxy-1,3-dioxolo(4,5-g)furo(2,3-b)quinoline 4-27-00-06802 (Beilstein Handbook Reference) 522-06-5 BRN 0289158 CCRIS 3581 Flindersiamin Flindersiamine NSC 284684