1-Bromo-3-chloropropane is primarily used as an intermediate in organic synthesis. It serves as a building block in the production of various pharmaceuticals, agrochemicals, and specialty chemicals. The compound is particularly valuable in the synthesis of compounds with propyl chains, where it acts as a precursor for further chemical modifications. Additionally, it is utilized in the preparation of polymers and resins, contributing to the development of materials with specific properties. Its reactivity with nucleophiles makes it a useful reagent in alkylation reactions, enabling the introduction of propyl groups into target molecules.