InChI=1/C19H11ClN2O4/c20-12-2-1-10-5-11-6-17(26-19(11)22-14(10)7-12)18(23)21-13-3-4-15-16(8-13)25-9-24-15/h1-8H,9H2,(H,21,23)/f/h21H 169979F17181C987