Used primarily as a reagent in organic synthesis, particularly in peptide chemistry. It serves as a protecting group precursor for hydroxylamines, enabling selective and reversible protection during multi-step syntheses. Its structure allows for mild deprotection conditions, making it valuable in the construction of complex molecules where sensitive functional groups are present. Commonly applied in the preparation of hydroxamic acids, which are important in medicinal chemistry for their role as enzyme inhibitors, especially in metalloproteinase inhibition. Also utilized in solid-phase synthesis due to its stability under various reaction conditions and compatibility with Fmoc-based strategies.