9-oxo-9H-quino[4,3,2-de]-1,10-phenanthrolin-5-yl acetate 9H-quino[4,3,2-de][1,10]phenanthrolin-9-one, 5-(acetyloxy)- InChI=1/C20H11N3O3/c1-10(24)26-11-4-5-15-14(9-11)12-6-8-22-18-16(12)19(23-15)20(25)13-3-2-7-21-17(13)18/h2-9H,1H