InChI=1S/C18H22O6S/c1-17-8-7-14-13-3-2-12(24-25(21,22)23)10-11(13)6-9-18(14,20)15(17)4-5-16(17)19/h2-3,10,14-15,20H,4-9H2,1H3,(H,21,22,23)/t14?,15?,17-,18?/m0/s1