InChI=1S/C18H22O7S/c1-17-6-7-18(21)12-5-3-11(25-26(22,23)24)8-10(12)2-4-13(18)14(17)9-15(19)16(17)20/h3,5,8,13-15,19,21H,2,4,6-7,9H2,1H3,(H,22,23,24)/t13?,14?,15?,17-,18?/m0/s1