InChI=1/C16H20N6/c17-13-5-1-3-11(9-13)15(19)21-7-8-22-16(20)12-4-2-6-14(18)10-12/h1-6,9-10H,7-8,17-18H2,(H2,19,21)(H2,20,22)/p+2/fC16H22N6/h21-22H,19-20H2/q+2 CC5EA2DF7B54529F