N-Carbobenzoxyhydroxylamine is primarily used in organic synthesis as a protecting group for hydroxylamine. It helps in the selective protection of hydroxylamine during complex chemical reactions, ensuring that the hydroxylamine group remains intact while other functional groups undergo transformation. This is particularly useful in the synthesis of peptides and other bioactive molecules where precise control over reaction conditions is critical. Additionally, it finds application in the preparation of oximes and other nitrogen-containing compounds, which are valuable intermediates in pharmaceuticals and agrochemicals. Its role in facilitating controlled and efficient reactions makes it a valuable tool in synthetic chemistry.