InChI=1S/C17H24O6S/c1-2-16(19)12-9-10-14-17(23-24(20,21)22)13-8-6-4-3-5-7-11-15-18/h2,8,13,16-19H,1,3-7,11,15H2,(H,20,21,22)/b13-8+