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