4-Bromo-1-butanol is primarily used as an intermediate in organic synthesis. It plays a significant role in the production of various pharmaceuticals, agrochemicals, and specialty chemicals. The compound is often utilized in the preparation of other brominated compounds, which are essential in the development of active pharmaceutical ingredients (APIs). Additionally, it serves as a building block in the synthesis of complex organic molecules, including polymers and surfactants. Its reactivity, particularly the bromine atom, makes it valuable in nucleophilic substitution reactions, enabling the creation of diverse chemical structures. In research and industrial settings, it is employed to develop new materials and compounds with specific properties for advanced applications.