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