InChI=1/C13H16N6O2/c1-3-8-11(12(14)18-13(15)17-8)7-4-5-9(16-2)10(6-7)19(20)21/h4-6,16H,3H2,1-2H3,(H4,14,15,17,18)/p+1/fC13H17N6O2/h17H,14-15H2/q+1 DFF7CC0F9F7998A0