InChI=1/C16H18N6O/c1-22(12-5-3-4-6-13(12)23-2)9-10-7-8-11-14(19-10)15(17)21-16(18)20-11/h3-8H,9H2,1-2H3,(H4,17,18,20,21)/p+1/fC16H19N6O/h20H,17-18H2/q+1 92251A50F8A4B74A