Used primarily as a chlorinating agent in organic synthesis, it facilitates the introduction of chlorine atoms into various organic compounds. It is particularly effective in the chlorination of alkenes, alkynes, and aromatic systems, enabling the production of chlorinated intermediates for pharmaceuticals, agrochemicals, and other fine chemicals. Additionally, it can introduce acetoxy groups in certain reactions and serves as a mild oxidizing agent, making it valuable in the preparation of complex molecules where selective functionalization or oxidation is required. Its stability and ease of handling make it a preferred choice in laboratory and industrial settings for controlled chlorination and related processes.