InChI=1S/C22H18O13/c23-6-8-2-1-7(3-10(8)25)19-16(28)14(26)13-11(33-19)4-9(24)5-12(13)34-22-18(30)15(27)17(29)20(35-22)21(31)32/h1-6,15,17-18,20,22,24-25,27-30H,(H,31,32)