Used primarily as a reagent in organic synthesis, particularly in the preparation of oximes and nitrones through reactions with carbonyl compounds. It serves as a protected form of hydroxylamine, where the 4-bromobenzyl group can be selectively removed under mild conditions, allowing for controlled release of the active amine. This property is valuable in multi-step syntheses, especially in pharmaceutical and agrochemical research where functional group compatibility is critical. The presence of the bromine atom also enables further derivatization via cross-coupling reactions, expanding its utility in building complex molecular architectures.