InChI=1S/C17H20O9S/c1-8(26-27(21,22)23)4-9-5-14(19)25-16-10-6-13(17(2,3)20)24-12(10)7-11(18)15(9)16/h5,7-8,13,18,20H,4,6H2,1-3H3,(H,21,22,23)