InChI=1/C16H14N4O2/c1-10-4-5-15(21)12(7-10)13-8-14(20-19-13)16(22)18-11-3-2-6-17-9-11/h2-7,9,21H,8H2,1H3,(H,18,22)/f/h22H CACAB4F1C6061DE2