InChI=1/C16H22N4/c1-11-9-20(10-12(2)18-11)16-14(8-17)7-13-5-3-4-6-15(13)19-16/h7,11-12,18H,3-6,9-10H2,1-2H3/p+1/t11-,12-/m0/s1/fC16H23N4/h18H/q+1 BCA57B12D2F6801F