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