InChI=1/C15H11ClN2O3S/c16-9-6-7-12-11(8-9)14(13(18-12)15(17)19)22(20,21)10-4-2-1-3-5-10/h1-8,18H,(H2,17,19)/f/h17H2 319EB3A3F5C3CD17