InChI=1S/C21H20O14/c22-8-4-7(34-21-18(31)16(29)17(30)19(35-21)20(32)33)5-9(23)13(8)15(28)12(26)3-6-1-10(24)14(27)11(25)2-6/h1-2,4-5,16-19,21-25,27,29-31H,3H2,(H,32,33)