InChI=1S/C19H14O10/c20-10-6-11(29-17(19(26)27)15(23)18(24)25)14(22)16-12(10)13(21)9(7-28-16)8-4-2-1-3-5-8/h1-7,15,17,20,22-23H,(H,24,25)(H,26,27)