InChI=1S/C16H18O9S/c1-24-16-5-9(2-3-15(16)25-26(21,22)23)4-10(17)6-12-13(19)7-11(18)8-14(12)20/h2-3,5,7-8,10,17-20H,4,6H2,1H3,(H,21,22,23)