BEC hydrochloride is widely used in scientific research, particularly in the study of enzyme inhibition. It serves as a potent and selective inhibitor of choline acetyltransferase, an enzyme crucial for the synthesis of the neurotransmitter acetylcholine. This property makes it valuable in neuroscience research to investigate the role of acetylcholine in various physiological and pathological processes, such as learning, memory, and neurodegenerative diseases like Alzheimer's. Additionally, it is utilized in pharmacological studies to explore the development of therapeutic agents targeting cholinergic systems. Its application extends to experimental models where modulating acetylcholine levels is essential to understand its impact on cognitive and motor functions.