InChI=1S/C16H17NO8S/c1-11(18)24-14-7-9-16(20)17(10-14)15(19)8-4-12-2-5-13(6-3-12)25-26(21,22)23/h2-3,5-7,9,14H,4,8,10H2,1H3,(H,21,22,23)