InChI=1/C20H18O8/c1-10-13-4-7-15(26-9-12-3-6-16(27-12)19(23)24)11(2)18(13)28-20(25)14(10)5-8-17(21)22/h3-4,6-7H,5,8-9H2,1-2H3,(H,21,22)(H,23,24)/p-2/fC20H16O8/q-2 1C5ECD997953FFC5