Pentaethylenehexamine is widely used as a curing agent in the production of epoxy resins, where it enhances the mechanical and thermal properties of the final product. It is also employed in the synthesis of chelating agents, which are crucial in water treatment processes to remove heavy metal ions. Additionally, this chemical finds application in the manufacture of surfactants and corrosion inhibitors, providing effective protection for industrial equipment. In the textile industry, it is utilized as a dye fixative, improving the colorfastness of fabrics. Its versatility also extends to the pharmaceutical sector, where it serves as an intermediate in the synthesis of various active compounds.