N-Phenylnicotinamide Hydrochloride is primarily utilized in the field of medicinal chemistry as a key intermediate in the synthesis of various pharmaceutical compounds. It plays a significant role in the development of drugs targeting neurological disorders, particularly those involving nicotinic acetylcholine receptors. The compound is also employed in research to study the biochemical pathways and mechanisms related to these receptors, aiding in the discovery of potential treatments for conditions like Alzheimer's disease, Parkinson's disease, and other cognitive impairments. Additionally, its derivatives are explored for their potential anti-inflammatory and analgesic properties, making it a valuable component in the design of new therapeutic agents.