InChI=1S/C14H26O6S/c1-2-3-4-5-7-10-13(20-21(17,18)19)11-8-6-9-12-14(15)16/h8,11,13H,2-7,9-10,12H2,1H3,(H,15,16)(H,17,18,19)/b11-8+