InChI=1/C19H16N4O5/c1-21-15-10-22(12-5-7-14(24)8-6-12)18(25)16(15)17(20-19(21)26)11-3-2-4-13(9-11)23(27)28/h2-9,17,24H,10H2,1H3,(H,20,26)/t17-/m0/s1/f/h20H B29119A1233EDA61