InChI=1S/C20H32O10S/c1-2-3-6-9-14(27-23)12-13-16-15(10-7-4-5-8-11-17(21)22)18-20(19(16)29-28-18)30-31(24,25)26/h4,7,12-16,18-20,23H,2-3,5-6,8-11H2,1H3,(H,21,22)(H,24,25,26)/b7-4-,13-12+