InChI=1S/C16H30O6S/c1-2-3-4-5-6-9-12-15(22-23(19,20)21)13-10-7-8-11-14-16(17)18/h9,12,15H,2-8,10-11,13-14H2,1H3,(H,17,18)(H,19,20,21)/b12-9-