InChI=1/C13H20N4O/c1-9-12(11(3)18)10(2)15-13(14-9)17-7-5-16(4)6-8-17/h5-8H2,1-4H3/p+1/fC13H21N4O/h16H/q+1 BE4FB9A52FE99F39