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