InChI=1S/C22H20O13/c23-12-11-9(5-10-19(13(11)24)32-6-31-10)34-18(15(12)26)7-1-3-8(4-2-7)33-22-17(28)14(25)16(27)20(35-22)21(29)30/h1-5,14-18,20,22,24-28H,6H2,(H,29,30)