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