InChI=1S/C18H22O8S/c1-18-3-2-9-10(12(18)7-15(21)17(18)22)6-13(19)11-4-8(26-27(23,24)25)5-14(20)16(9)11/h4-5,9-10,12,15,17,20-22H,2-3,6-7H2,1H3,(H,23,24,25)/t9?,10?,12?,15?,17?,18-/m0/s1