D-Kynurenine plays a significant role in biochemical research, particularly in studies related to the kynurenine pathway. This pathway is crucial for understanding various physiological and pathological processes, including immune response, neurological disorders, and cancer. Researchers use D-Kynurenine to investigate its effects on neurotransmitter regulation and its potential implications in neurodegenerative diseases such as Alzheimer's and Parkinson's. Additionally, it is employed in the development of therapeutic strategies targeting metabolic pathways involved in inflammation and immune modulation. Its enantiomeric form allows for specific studies on enzyme activity and metabolic interactions, providing insights into the differential effects of kynurenine pathway metabolites.