InChI=1S/C18H22O8S/c1-18-7-13(21)15-10-3-2-9(19)4-8(10)5-14(26-27(23,24)25)16(15)11(18)6-12(20)17(18)22/h2-4,11-16,19-21H,5-7H2,1H3,(H,23,24,25)/t11?,12?,13?,14?,15?,16?,18-/m0/s1