InChI=1S/C19H16O10/c20-10-5-7(27-19-15(23)13(21)14(22)16(29-19)17(24)25)6-11-12(10)8-3-1-2-4-9(8)18(26)28-11/h1-6,13-16,19-23H,(H,24,25)