InChI=1S/C17H16O10S/c1-25-12-3-2-8(16(21)17(12)27-28(22,23)24)4-9-7-26-13-6-10(18)5-11(19)14(13)15(9)20/h2-3,5-6,9,18-19,21H,4,7H2,1H3,(H,22,23,24)