1a,9b-dihydrooxireno[f]-1,10-phenanthroline InChI=1/C12H8N2O/c1-3-7-9(13-5-1)10-8(4-2-6-14-10)12-11(7)15-12/h1-6,11-12 oxireno[f][1,10]phenanthroline, 1a,9b-dihydro-