InChI=1S/C17H26O8S/c1-12(2)6-4-5-7-15(25-26(20,21)22)17(19)24-11-13-8-9-14(18)16(10-13)23-3/h8-10,12,15,18H,4-7,11H2,1-3H3,(H,20,21,22)