6-Chloro-2-mercaptobenzothiazole is primarily used as a corrosion inhibitor in industrial applications, particularly in cooling water systems and metalworking fluids. It helps protect metal surfaces from rust and degradation by forming a protective layer, extending the lifespan of equipment and machinery. Additionally, it serves as an intermediate in the synthesis of rubber accelerators, enhancing the vulcanization process in rubber manufacturing. This chemical is also employed in the production of certain agricultural chemicals and pharmaceuticals, where it acts as a key building block in the synthesis of active ingredients. Its effectiveness in these applications makes it a valuable component in various industrial processes.