InChI=1S/C20H38O6S/c1-2-3-4-5-6-7-10-13-16-19(26-27(23,24)25)17-14-11-8-9-12-15-18-20(21)22/h13,16,19H,2-12,14-15,17-18H2,1H3,(H,21,22)(H,23,24,25)/b16-13+