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