4-Bromophenethylamine is primarily used in organic synthesis as a building block for the preparation of more complex chemical compounds. It serves as an intermediate in the production of pharmaceuticals, particularly in the development of drugs that target the central nervous system. Its structure makes it valuable for creating compounds with potential psychoactive or therapeutic properties. Additionally, it is utilized in research settings for the study of neurotransmitter systems, aiding in the understanding of neurological disorders and the development of treatments. In some cases, it is also employed in the synthesis of agrochemicals, contributing to the creation of pesticides or herbicides. Its versatility in chemical reactions makes it a useful reagent in various industrial and academic applications.