Used as a chlorinating and oxidizing agent in organic synthesis, particularly in the preparation of chlorinated compounds. It is effective in electrophilic chlorination reactions, where it transfers chlorine atoms to various substrates such as alkenes, aromatics, and heteroatoms. Its cyclic carbonate structure enhances stability and selectivity during reactions. Commonly applied in pharmaceutical and agrochemical manufacturing for introducing chlorine functionality under mild conditions. Also utilized in the development of specialty polymers and as a reagent in analytical chemistry for functional group transformation.