InChI=1S/C18H22O8S/c19-10-1-2-11-9(5-10)6-14(20)16-12(11)3-4-18(8-26-27(23,24)25)13(16)7-15(21)17(18)22/h1-2,5,12-14,16-17,19-20,22H,3-4,6-8H2,(H,23,24,25)/t12?,13?,14?,16?,17?,18-/m1/s1