InChI=1S/C16H16O10S/c1-24-11-4-7(17)5-12-13(11)16(26-27(21,22)23)9(6-25-12)8-2-3-10(18)15(20)14(8)19/h2-5,9,16-20H,6H2,1H3,(H,21,22,23)