InChI=1/C15H11Cl2NO4S/c16-12-4-3-11(8-13(12)17)23(20,21)22-10-2-5-14-9(7-10)1-6-15(19)18-14/h2-5,7-8H,1,6H2,(H,18,19)/f/h18H 110DAE2BE4A4FE8D