(1-Bromo-3-chloropropyl)benzene is primarily used as an intermediate in organic synthesis, particularly in the production of pharmaceuticals and agrochemicals. Its structure allows it to participate in various chemical reactions, such as nucleophilic substitution, making it valuable for constructing complex molecules. It is often employed in the synthesis of active pharmaceutical ingredients (APIs) where the introduction of a benzene ring with specific halogenated side chains is required. Additionally, it can be utilized in the development of specialty chemicals, including polymers and dyes, where its reactive bromo and chloro groups enable further functionalization. Its role in cross-coupling reactions also makes it useful in materials science for creating advanced organic compounds.