InChI=1/C13H19N5O/c1-4-5-10-8-11(16-15-10)13(19)18(3)9-12-14-6-7-17(12)2/h6-8H,4-5,9H2,1-3H3,(H,15,16)/p+1/fC13H20N5O/h14,16H/q+1 E973DEF36AA7292C