InChI=1/C19H16N6/c1-14-13-16(7-9-20-14)23-19-22-10-8-17(24-19)25-12-11-21-18(25)15-5-3-2-4-6-15/h2-13H,1H3,(H,20,22,23,24)/f/h23H 7D7C7F0B9E176FCE