InChI=1/C20H16N4OS/c1-13-6-8-15(9-7-13)19-22-23-20(26)24(19)21-12-17-16-5-3-2-4-14(16)10-11-18(17)25/h2-12,25H,1H3,(H,23,26)/b21-12-/f/h23H 6323404A952E08F7