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