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