InChI=1S/C20H38O6S/c1-19(26-27(23,24)25)17-15-13-11-9-7-5-3-2-4-6-8-10-12-14-16-18-20(21)22/h3,5,19H,2,4,6-18H2,1H3,(H,21,22)(H,23,24,25)/b5-3+