1,7-Diaminoheptane is primarily used as a building block in the synthesis of various polymers, particularly polyamides and polyurethanes. Its bifunctional nature, with amine groups at both ends, makes it valuable for creating long-chain polymers with specific mechanical and thermal properties. It is also employed in the production of corrosion inhibitors, where it helps protect metal surfaces by forming a protective layer. Additionally, this compound finds application in the pharmaceutical industry as an intermediate in the synthesis of certain drugs and bioactive molecules. Its role in organic synthesis extends to the preparation of chelating agents, which are used to bind metal ions in industrial processes and wastewater treatment.