InChI=1S/C19H18O10/c20-9-5-7-10(8-6-9)27-18(26)11-3-1-2-4-12(11)28-19-15(23)13(21)14(22)16(29-19)17(24)25/h1-8,13-16,19-23H,(H,24,25)