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