InChI=1/C21H26N4/c1-3-24(4-2)20-11-9-18(10-12-20)15-23-16-19-7-5-6-8-21(19)25-14-13-22-17-25/h5-14,17,23H,3-4,15-16H2,1-2H3/p+2/fC21H28N4/h23-24H/q+2 F0F618825B33640E