Bromazine hydrochloride is primarily used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of central nervous system (CNS) active agents. It plays a role in the production of certain antipsychotic and antidepressant medications due to its ability to modulate neurotransmitter activity. Its chemical structure allows for derivatization into more complex molecules with targeted biological effects. It is also employed in research settings for studying receptor binding and neurochemical pathways. Due to its reactivity, it is handled under controlled conditions in pharmaceutical manufacturing and laboratory environments.