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