InChI=1/C13H16N4O/c1-11-3-4-12(9-16-11)13(18)15-5-2-7-17-8-6-14-10-17/h3-4,6,8-10H,2,5,7H2,1H3,(H,15,18)/p+1/fC13H17N4O/h14-15H/q+1 8F72F94204BAE8BB