InChI=1S/C18H22O7S/c1-18-5-4-11-16-9(6-10(8-14(16)20)25-26(22,23)24)7-13(19)17(11)12(18)2-3-15(18)21/h6,8,11-13,17,19-20H,2-5,7H2,1H3,(H,22,23,24)/t11?,12?,13?,17?,18-/m0/s1