InChI=1S/C18H28O8S/c1-18(2,20)11-7-5-4-6-8-17(19)25-13-14-9-10-15(16(12-14)24-3)26-27(21,22)23/h9-10,12,20H,4-8,11,13H2,1-3H3,(H,21,22,23)