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