InChI=1S/C18H22O7S/c1-17-6-4-13-12-3-2-11(19)8-10(12)9-14(25-26(22,23)24)16(13)18(17,21)7-5-15(17)20/h2-3,8,13-14,16,19,21H,4-7,9H2,1H3,(H,22,23,24)/t13?,14?,16?,17-,18?/m1/s1