Used primarily in pharmaceutical research as a key intermediate in the synthesis of biologically active compounds. It serves as a building block for drugs targeting central nervous system disorders due to its structural similarity to neurotransmitter receptors. Its piperidine-pyridine framework is valuable in developing receptor agonists and antagonists, particularly for nicotinic acetylcholine receptors. Also employed in the development of novel antidepressants and cognitive enhancers. The dihydrochloride salt form improves solubility and stability, making it suitable for in vitro and in vivo studies.