InChI=1S/C16H16O8S/c1-23-16-10(6-8-14(18)15(16)19)5-7-13(17)11-3-2-4-12(9-11)24-25(20,21)22/h2-4,6,8-9,18-19H,5,7H2,1H3,(H,20,21,22)