InChI=1/C13H16N4O/c18-8-7-14-13-16-11-4-2-1-3-10(11)12(17-13)15-9-5-6-9/h1-4,9,18H,5-8H2,(H2,14,15,16,17)/p+1/fC13H17N4O/h14-16H/q+1 F7B8C6CFD8164F1A