InChI=1S/C18H30O6S/c1-2-17(24-25(21,22)23)15-13-11-9-7-5-3-4-6-8-10-12-14-16-18(19)20/h3,5,9,11,13,15,17H,2,4,6-8,10,12,14,16H2,1H3,(H,19,20)(H,21,22,23)/b5-3-,11-9-,15-13+