InChI=1S/C20H40O4S/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-24-25(21,22)23/h9-10H,2-8,11-20H2,1H3,(H,21,22,23)/b10-9+