N-Boc-1,4-butanediamine is widely used in organic synthesis as a versatile building block, particularly in the preparation of pharmaceuticals and bioactive compounds. Its Boc-protected amine group allows for selective reactions, making it valuable in peptide synthesis and the development of drug intermediates. It is also employed in the creation of dendrimers and polymers, where its bifunctional nature enables controlled polymerization and cross-linking. Additionally, it serves as a precursor in the synthesis of ligands for catalysis and materials science applications, contributing to the design of functionalized surfaces and nanostructures. Its stability and reactivity make it a key reagent in medicinal chemistry for constructing complex molecular architectures.