InChI=1/C21H16N4O2S/c26-25(27)19-13-11-17(12-14-19)22-23-21-24(18-9-5-2-6-10-18)20(15-28-21)16-7-3-1-4-8-16/h1-15,22H/p+1/fC21H17N4O2S/h23H/q+1 49BCD0D16AB94C2D