InChI=1/C21H15N3O4S/c1-12-18(19(24-28-12)13-5-3-2-4-6-13)20(25)23-21-22-15(10-29-21)14-7-8-16-17(9-14)27-11-26-16/h2-10H,11H2,1H3,(H,22,23,25)/f/h23H A1674925B5261A02