Used as a crosslinking agent in polymer chemistry, particularly in the development of polythiourea networks. It reacts with diamines to form thiourea linkages, enhancing thermal and mechanical stability of resulting polymers. Applied in specialty coatings, adhesives, and high-performance materials where resistance to heat and chemicals is required. Also utilized in research for synthesizing macrocyclic compounds and ligands in coordination chemistry due to its rigid aromatic structure and reactive isothiocyanate groups.