InChI=1S/C17H16O8S/c1-23-14-7-12(18)8-15-16(14)17(19)11(9-24-15)5-10-3-2-4-13(6-10)25-26(20,21)22/h2-4,6-8,11,18H,5,9H2,1H3,(H,20,21,22)