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