InChI=1S/C16H16O9S/c1-24-16-11(13(18)8-14(19)15(16)20)6-7-12(17)9-2-4-10(5-3-9)25-26(21,22)23/h2-5,8,18-20H,6-7H2,1H3,(H,21,22,23)