InChI=1S/C16H30O6S/c1-15(22-23(19,20)21)13-11-9-7-5-3-2-4-6-8-10-12-14-16(17)18/h3,5,15H,2,4,6-14H2,1H3,(H,17,18)(H,19,20,21)/b5-3-