InChI=1S/C18H22O7S/c19-9-18-6-5-13-12-2-1-11(20)7-10(12)8-15(25-26(22,23)24)17(13)14(18)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