InChI=1S/C22H18O11/c1-29-8-2-4-10-12(6-8)31-18-11-5-3-9(7-13(11)32-21(28)14(10)18)30-22-17(25)15(23)16(24)19(33-22)20(26)27/h2-7,15-17,19,22-25H,1H3,(H,26,27)