Used as a corrosion inhibitor in cooling systems and antifreeze formulations, particularly for copper and its alloys. It protects metal surfaces by forming a protective film that prevents oxidative degradation. Also employed in metalworking fluids to enhance lubricant performance and extend equipment life. Additionally, it serves as a stabilizer in some polymer systems and can be used in the synthesis of other specialty chemicals, including agrochemicals and pharmaceuticals, due to its heterocyclic structure.