InChI=1/C16H26N4O/c1-12(2)3-4-19-5-7-20(8-6-19)16(21)13-9-14(17)11-15(18)10-13/h9-12H,3-8,17-18H2,1-2H3/p+1/fC16H27N4O/h19H/q+1 AFB156FA79507B42