InChI=1/C20H16N2O7/c1-9-5-11-16(26)17(27)18(10-3-4-13(23)14(24)7-10)29-19(11)12(6-9)22-15(25)8-21(2)20(22)28/h3-7,23-24,27H,8H2,1-2H3/p-1/fC20H15N2O7/h27h/q-1	8E080F25D5AA87EE