InChI=1/C18H26N4O2/c1-3-16(21-8-5-10-22-11-9-20-13-22)18(23)14-6-7-17(24-4-2)15(19)12-14/h6-7,9,11-13,16,21H,3-5,8,10,19H2,1-2H3/p+2/t16-/m1/s1/fC18H28N4O2/h20-21H/q+2 C8A009AEC9D300FA