InChI=1S/C16H16O9S/c1-24-15-9(3-7-13(19)16(15)25-26(21,22)23)2-5-11(17)10-4-6-12(18)14(20)8-10/h3-4,6-8,18-20H,2,5H2,1H3,(H,21,22,23)