InChI=1S/C18H22O7S/c19-11-1-2-12-10(7-11)8-15(20)17-13(12)5-6-18(9-25-26(22,23)24)14(17)3-4-16(18)21/h1-2,7,13-15,17,19-20H,3-6,8-9H2,(H,22,23,24)/t13?,14?,15?,17?,18-/m1/s1