(1,3)Benzodioxolo(5,6-c)-1,3-dioxolo(4,5-i)phenanthridine 1,3-Dioxolo(i)(1,3)dioxolo(4,5)benzo(1,2-c)phenanthridine 522-30-5 NSC 143762 Norsanguinarine Sanguinarine, 13-demethyl-