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