Used primarily as an intermediate in organic synthesis, this compound serves in the preparation of more complex molecules, especially in pharmaceutical and fine chemical industries. Its sulfonate ester group makes it a good leaving group, enabling alkylation reactions and nucleophilic substitutions. It is particularly useful in the construction of extended aromatic or alkyl-aromatic systems, where the phenylbutyl chain can act as a spacer or linker. Additionally, it may be employed in the development of functional materials or as a building block in medicinal chemistry for designing bioactive compounds.