Triethylamine is widely used as a base and catalyst in organic synthesis, particularly in the production of pharmaceuticals, agrochemicals, and dyes. It is commonly employed in the manufacture of quaternary ammonium compounds, which are essential in fabric softeners and disinfectants. In the polymer industry, it acts as a catalyst for the production of polyurethane foams and epoxy resins. Additionally, it is utilized in the extraction and purification of antibiotics and other active pharmaceutical ingredients. Its ability to neutralize acids makes it valuable in corrosion inhibitors and as a pH adjuster in various industrial processes.