Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and fine chemicals. Its bromine functionality allows for further substitution reactions, making it valuable in constructing complex molecules. Commonly employed in the synthesis of active pharmaceutical ingredients where a butanoate ester linker with a reactive bromoalkyl group is needed. Also utilized in the development of agrochemicals and specialty polymers due to its ability to introduce aromatic and alkyl bromide moieties in a single structure.