InChI=1S/C22H18O13/c1-33-19-12-8(13(25)7-2-6(5-23)3-9(24)11(7)15(12)27)4-10(14(19)26)34-22-18(30)16(28)17(29)20(35-22)21(31)32/h2-5,16-18,20,22,24,26,28-30H,1H3,(H,31,32)