InChI=1/C13H18N4O/c1-16-5-7-17(8-6-16)13-14-9-10-11(15-13)3-2-4-12(10)18/h9H,2-8H2,1H3/p+1/fC13H19N4O/h16H/q+1 81362DA78FAC216A