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