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