Ethyl oxy chloride, also known as ethyl hypochlorite or chloroethanol, is a chemical compound with the formula C2H5OCl. It is a colorless liquid with a pungent odor, primarily used as an intermediate in organic synthesis. Ethyl oxy chloride is versatile in applications, serving as a reagent in the production of pharmaceuticals and agrochemicals. It reacts readily with nucleophiles and can be used to introduce the ethoxy group into organic molecules. Due to its reactive nature and potential hazards, including being a respiratory irritant and corrosive to skin and eyes, handling should be done with appropriate safety precautions and under controlled conditions.