Used primarily as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of certain antihypertensive and antiarrhythmic agents. It serves as a building block in organic reactions where hydrazine functionality is required for coupling or cyclization processes. Its phenoxy-benzyl structure allows for good aromatic reactivity, making it useful in the preparation of heterocyclic systems. Also employed in research settings for the design of novel bioactive molecules and in the optimization of drug candidates requiring hydrazine-based modifications.