InChI=1/C16H12BrN2O3/c1-2-22-13-8-9(7-11(17)14(13)20)15-18-12-6-4-3-5-10(12)16(21)19-15/h3-8H,2H2,1H3,(H,18,19,21)/q-1/f/h19H 03BF416B81F5F2E0