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