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