InChI=1/C18H19N5/c1-2-4-15-14(3-1)18(6-9-19-10-7-18)11-23(15)17-13-5-8-20-16(13)21-12-22-17/h1-5,8,12,19H,6-7,9-11H2,(H,20,21,22)/p+1/fC18H20N5/h19-20H/q+1 20A3D78732AAC7A8