InChI=1S/C19H22O7S/c20-16-9-6-14(7-10-16)8-11-18(26-27(23,24)25)12-17(21)13-19(22)15-4-2-1-3-5-15/h1-7,9-10,18-20,22H,8,11-13H2,(H,23,24,25)