InChI=1/C16H22N4/c1-11(2)15-13-5-3-4-12(13)14(10-17)16(19-15)20-8-6-18-7-9-20/h11,18H,3-9H2,1-2H3/p+1/fC16H23N4/h18H/q+1 C41A80607D6FEE0C