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