InChI=1S/C20H34O9S/c1-2-3-4-7-14(21)10-11-16-17(12-15(22)8-5-6-9-20(24)25)19(13-18(16)23)29-30(26,27)28/h10-11,14,16-19,21,23H,2-9,12-13H2,1H3,(H,24,25)(H,26,27,28)/b11-10+