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