InChI=1S/C20H30O5S/c1-15(10-11-17-16(2)9-7-12-19(17,3)4)8-6-13-20(5)18(25-20)14-24-26(21,22)23/h6,8,10-11,13,18H,7,9,12,14H2,1-5H3,(H,21,22,23)/b11-10+,13-6+,15-8+