InChI=1/C18H20N6/c1-5-15(23-17-19-9-10-20-17)6-2-13(1)14-3-7-16(8-4-14)24-18-21-11-12-22-18/h1-8H,9-12H2,(H2,19,20,23)(H2,21,22,24)/p+2/fC18H22N6/h19-24H/q+2 80C2895D822F5352