InChI=1S/C21H18O14/c22-6-1-2-7(23)17-10(6)12(27)18(16(33-17)5-3-8(24)11(26)9(25)4-5)34-21-15(30)13(28)14(29)19(35-21)20(31)32/h1-4,13-15,19,21-26,28-30H,(H,31,32)