Allyl chloride is an organic compound with the chemical formula C3H5Cl. It is a colorless liquid that has a pungent odor and is primarily used in the production of various chemicals, including plastics and pharmaceuticals. Allyl chloride is produced through the chlorination of propylene, a process that introduces chlorine into the molecule. This compound is important in organic synthesis, serving as a building block for the creation of other chemical compounds. It can undergo various reactions, such as polymerization and substitution, making it valuable in the chemical industry. Safety precautions are necessary when handling allyl chloride due to its toxic and irritating properties.