In the event of an emergency involving 1-Chloro-2,4-Dinitrobenzene (or any other hazardous substance), you should immediately contact the supplier's 24-hour emergency response line.o If necessary, wear the appropriate personal protective equipment (PPE), such as gloves, respirators, and safety goggles.2.Evacuate the area: Make sure that all employees evacuate the immediate area in the case of a spill, leak, or exposure.