InChI=1S/C16H30O6S/c1-2-3-9-12-15(22-23(19,20)21)13-10-7-5-4-6-8-11-14-16(17)18/h10,13,15H,2-9,11-12,14H2,1H3,(H,17,18)(H,19,20,21)/b13-10-