InChI=1S/C21H18O13/c22-8-3-7(32-21-18(29)16(27)17(28)19(34-21)20(30)31)4-13-14(8)9(23)5-12(33-13)6-1-10(24)15(26)11(25)2-6/h1-5,16-19,21-22,24-29H,(H,30,31)