Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. It serves as a chlorinating agent in organic reactions due to its reactive chlorine atoms. Commonly employed in the preparation of triazine-based herbicides and biocides. Also utilized in the development of dyes and functional materials where chlorine substitution enables further chemical modification. Its structure allows for selective derivatization, making it valuable in research and industrial applications requiring tailored heterocyclic compounds.