Used as a curing agent and chain extender in polyurethane systems, enhancing flexibility and mechanical strength. Commonly applied in coatings, adhesives, sealants, and elastomers due to its ability to improve chemical and thermal resistance. Also serves as an intermediate in the synthesis of specialty polymers and resins where controlled reactivity and hydroxyl functionality are required. Its secondary amine structure allows for tailored crosslinking, making it suitable in epoxy formulations as a hardener with improved toughness.