InChI=1/C16H16N4O/c1-10(17)11-2-4-12(5-3-11)16(21)20-14-7-9-19-15-13(14)6-8-18-15/h2-10H,17H2,1H3,(H2,18,19,20,21)/p+1/t10-/m1/s1/fC16H17N4O/h17-18,20H/q+1 237B5AC843FEC0E8