InChI=1S/C22H20O14/c1-33-12-5-11-13(7(23)4-10(34-11)6-2-8(24)14(26)9(25)3-6)15(27)19(12)35-22-18(30)16(28)17(29)20(36-22)21(31)32/h2-5,16-18,20,22,24-30H,1H3,(H,31,32)