InChI=1S/C21H26O10S/c1-11-14(10-30-32(24,25)26)21(13-8-17(28-3)19(23)18(9-13)29-4)31-20(11)12-5-6-15(22)16(7-12)27-2/h5-9,11,14,20-23H,10H2,1-4H3,(H,24,25,26)