InChI=1S/C18H26O8S/c1-12-6-5-9-15(26-27(22,23)24)8-4-2-3-7-13-10-14(19)11-16(20)17(13)18(21)25-12/h10-12,15,19-20H,2-9H2,1H3,(H,22,23,24)