InChI=1/C17H20N6/c1-10-6-12(3)13(7-11(10)2)8-14(9-18)15-20-16(19)22-17(21-15)23(4)5/h6-8H,1-5H3,(H2,19,20,21,22)/b14-8+/f/h19H2 FDF23C580D9A3BE3