InChI=1/C21H14N2O3S/c24-18(15-10-5-2-6-11-15)19-17(14-8-3-1-4-9-14)22-21(27-19)23-20(25)16-12-7-13-26-16/h1-13H,(H,22,23,25)/f/h23H 108970AA181C53E2