InChI=1/C16H12N6O2/c23-15(9-5-6-13-14(7-9)19-22-18-13)20-21-16(24)11-8-17-12-4-2-1-3-10(11)12/h1-8,17H,(H,20,23)(H,21,24)(H,18,19,22)/f/h18,20-21H D52D0F51817B81A1