InChI=1S/C17H16O9S/c1-24-13-3-2-9(5-14(13)26-27(21,22)23)4-10-8-25-15-7-11(18)6-12(19)16(15)17(10)20/h2-3,5-7,10,18-19H,4,8H2,1H3,(H,21,22,23)