5-Oxopiperidine-2-Carboxylic Acid Hydrochloride is used as an intermediate in the synthesis of pharmaceuticals featuring piperidone structures, which are key scaffolds in various bioactive compounds, especially in the pharmaceutical industry. It serves as a starting material or intermediate for creating agents affecting the central nervous system, including potential nootropic and neuroprotective drugs, as well as in the development of antimicrobial and anticancer therapeutics. Additionally, it is employed in organic chemistry research to build highly complex derivatives, allowing easy structural modifications through various chemical reactions such as substitution, reduction, or addition of other functional groups to yield desired products.