InChI=1S/C21H26O10S/c1-10-13-9-14(19(28-4)11(2)31-32(24,25)26)17(23)21(29-5)20(13)30-18(10)12-6-7-15(22)16(8-12)27-3/h6-11,18-19,22-23H,1-5H3,(H,24,25,26)