InChI=1/C19H11ClN2O4/c1-9-8-14(22-26-9)21-19(25)13-7-6-12-15(16(13)20)18(24)11-5-3-2-4-10(11)17(12)23/h2-8H,1H3,(H,21,22,25)/f/h21H 8EC79CE44344246E