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