TEPA, also known as Tetraethylenepentamine, is an organic compound with the chemical formula C8H23N5. It is a colorless to pale yellow liquid with a strong ammonia-like odor. TEPA is widely used as a curing agent, chelating agent, and chemical intermediate in various industries. It finds applications in epoxy resin formulations, coatings, adhesives, fuel additives, and water treatment chemicals. TEPA is known for its ability to enhance adhesion, flexibility, and chemical resistance in different polymeric materials.