InChI=1/C16H24N4O/c17-15(19-21)13-11-12-7-3-4-8-14(12)18-16(13)20-9-5-1-2-6-10-20/h11,21H,1-10H2,(H2,17,19)/p+1/fC16H25N4O/h18H,17H2/q+1/b19-15+ 7A8D561CF3E01168