InChI=1S/C21H16O13/c22-7-2-1-6-16-11(20(30)33-17(6)12(7)24)10-8(23)3-5(4-9(10)32-16)31-21-15(27)13(25)14(26)18(34-21)19(28)29/h1-4,13-15,18,21-27H,(H,28,29)