InChI=1S/C17H20O9S/c1-4-11(26-27(21,22)23)8-6-14(19)25-16-9-5-13(17(2,3)20)24-12(9)7-10(18)15(8)16/h6-7,11,13,18,20H,4-5H2,1-3H3,(H,21,22,23)