InChI=1/C20H22N4/c1-3-11-17-15(7-1)9-5-13-19(21-17)23-24-20-14-6-10-16-8-2-4-12-18(16)22-20/h1-4,7-8,11-12H,5-6,9-10,13-14H2,(H,21,23)(H,22,24)/p+1/fC20H23N4/h21,23-24H/q+1 19E582F911FFFB82