InChI=1/C19H16N6O/c20-18-23-15(14-9-5-2-6-10-14)16-17(24-18)25(12-22-16)19(26)21-11-13-7-3-1-4-8-13/h1-10,12H,11H2,(H,21,26)(H2,20,23,24)/f/h21H,20H2 A5CAB44D137724E3