InChI=1S/C20H32O10S/c21-20(22)10-6-2-1-5-9-16-17(19-14-18(16)29-30-19)12-11-15(28-23)8-4-3-7-13-27-31(24,25)26/h1,5,11-12,15-19,23H,2-4,6-10,13-14H2,(H,21,22)(H,24,25,26)/b5-1-,12-11+