Used as a key intermediate in organic synthesis, particularly in the preparation of macrocyclic compounds and crown ether analogs. Its long aliphatic chain with reactive bromine ends allows for efficient ring-closing reactions or stepwise extension of molecular frameworks. Commonly employed in the development of supramolecular structures, ligands for metal ion coordination, and in the synthesis of functionalized polymers. Also utilized in the pharmaceutical field to link pharmacophores or build spacer units in drug design. Its bifunctional reactivity makes it valuable in cross-coupling reactions and in constructing well-defined molecular architectures.