Used primarily as a chlorinating agent in organic synthesis, this compound facilitates the introduction of chlorine atoms into various substrates, especially in the preparation of chlorinated aromatic compounds. It is effective in controlled chlorination reactions where selectivity and mild conditions are required. Its stability and reactivity profile make it suitable for use in pharmaceutical intermediates, agrochemicals, and fine chemical manufacturing. Additionally, it serves as a disinfectant or biocide precursor in some industrial applications due to its ability to release active chlorine.