InChI=1S/C19H22O8S/c1-10-11(2)19(13-5-7-15(21)17(9-13)27-28(22,23)24)26-18(10)12-4-6-14(20)16(8-12)25-3/h4-11,18-21H,1-3H3,(H,22,23,24)