InChI=1S/C17H26O7S/c1-13(2)7-5-3-4-6-8-17(19)23-12-14-9-10-15(18)16(11-14)24-25(20,21)22/h9-11,13,18H,3-8,12H2,1-2H3,(H,20,21,22)