InChI=1/C16H12ClN3O3/c1-18-13-5-2-9(7-15(13)20(22)23)6-12-11-4-3-10(17)8-14(11)19-16(12)21/h2-8,18H,1H3,(H,19,21)/b12-6+/f/h19H 8FA1C7FA1CB730A4