InChI=1S/C18H22O7S/c1-17-7-6-13-12-4-3-11(19)8-10(12)2-5-14(13)18(17,21)9-15(16(17)20)25-26(22,23)24/h3-4,8,13-15,19,21H,2,5-7,9H2,1H3,(H,22,23,24)/t13?,14?,15?,17-,18?/m1/s1