4-Benzyloxy-1,3-butanediol is primarily utilized in organic synthesis as an intermediate for the production of various fine chemicals and pharmaceuticals. Its structure, featuring both hydroxyl and benzyloxy groups, makes it a versatile building block in the synthesis of complex molecules. It is often employed in the preparation of chiral compounds, where its stereochemistry can be leveraged to create enantiomerically pure substances. Additionally, it serves as a precursor in the development of polymers and specialty materials, contributing to their unique properties. In pharmaceutical research, it is used to synthesize active pharmaceutical ingredients (APIs) and prodrugs, particularly in the development of drugs targeting neurological and metabolic disorders. Its role in these applications underscores its importance in advancing chemical and medicinal innovations.