InChI=1/C16H20N4OS/c1-21-12-7-3-2-6-11(12)19-20-15-14-10-5-4-8-13(10)22-16(14)18-9-17-15/h9,12H,2-8H2,1H3,(H,17,18,20)/b19-11+/t12-/m1/s1/f/h20H B4404225AF0114E7