InChI=1/C16H24N4O/c1-20(10-11-21-2)9-8-17-12-15-13-18-19-16(15)14-6-4-3-5-7-14/h3-7,13,17H,8-12H2,1-2H3,(H,18,19)/p+1/fC16H25N4O/h19-20H/q+1 DD1121A7D2C524E6