InChI=1/C19H16N4O/c20-19-22-16-15(11-21-17(16)18(24)23-19)10-12-6-8-14(9-7-12)13-4-2-1-3-5-13/h1-9,11,21H,10H2,(H3,20,22,23,24)/f/h23H,20H2 7F313D7D81BA346C