InChI=1S/C21H18O15/c22-5-3-8(25)11(27)17-9(5)12(28)18(16(34-17)4-1-6(23)10(26)7(24)2-4)35-21-15(31)13(29)14(30)19(36-21)20(32)33/h1-3,13-15,19,21-27,29-31H,(H,32,33)