N-Carbobenzoxy-1,10-diaminodecane Hydrochloride is primarily used in organic synthesis and peptide chemistry as a protecting group for amines. It helps in the selective modification of amino groups during the synthesis of complex molecules, ensuring that specific reactions occur without interference from other functional groups. This compound is particularly useful in the preparation of peptides, where it safeguards the amine functionality until the desired stage of the synthesis, after which it can be removed to reveal the free amine. Its application is crucial in the development of pharmaceuticals, bioactive peptides, and other fine chemicals, enabling precise control over molecular structures.