InChI=1/C16H22N6/c1-13(18-21-11-9-20(3)10-12-21)16-14(2)22(19-17-16)15-7-5-4-6-8-15/h4-8H,9-12H2,1-3H3/p+1/b18-13-/fC16H23N6/h20H/q+1 97EA8DA823C2A2D5