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