InChI=1/C13H11ClN2O3/c14-10-4-2-1-3-8(10)5-11-15-9(7-13(18)19)6-12(17)16-11/h1-4,6H,5,7H2,(H,18,19)(H,15,16,17)/p-1/fC13H10ClN2O3/h15H/q-1 7E2C02790AF14512