InChI=1/C21H16ClNO4S/c1-12-6-17(9-19-21(12)14(11-28-19)7-20(24)25)26-10-16-8-18(27-23-16)13-2-4-15(22)5-3-13/h2-6,8-9,11H,7,10H2,1H3,(H,24,25)/p-1/fC21H15ClNO4S/q-1 21013A422AE58E83