InChI=1S/C19H18O11S/c20-4-5-27-13-9-14(21)16-15(10-13)30-19(18(23)17(16)22)11-2-1-3-12(8-11)28-6-7-29-31(24,25)26/h1-3,8-10,20-21,23H,4-7H2,(H,24,25,26)