InChI=1/C21H16ClNO4/c22-17-10-8-15(9-11-17)13-18(23-20(24)19-7-4-12-26-19)21(25)27-14-16-5-2-1-3-6-16/h1-13H,14H2,(H,23,24)/b18-13+/f/h23H 5785DAB7241F4BE1