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