InChI=1/C20H17N5/c1-21-20-22-13-12-16(23-20)18-17(14-8-4-2-5-9-14)24-19(25-18)15-10-6-3-7-11-15/h2-13H,1H3,(H,24,25)(H,21,22,23)/f/h21,24H 5E212C851FC34B33