InChI=1S/C18H22O8S/c1-18-3-2-8-9-4-14(20)15(21)6-11(9)13(19)5-10(8)12(18)7-16(22)17(18)26-27(23,24)25/h4,6,8,10,12,16-17,20-22H,2-3,5,7H2,1H3,(H,23,24,25)/t8?,10?,12?,16?,17?,18-/m0/s1