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