Quinolinic Acid丨CAS 89-00-9

Quinolinic acid is primarily used in biochemical and pharmacological research as a neuroactive metabolite and an intermediate in the kynurenine pathway of tryptophan metabolism. It serves as a tool to study excitotoxicity and neurodegenerative processes because it acts as an agonist of N-methyl-D-aspartate (NMDA) receptors in the central nervous system. Researchers employ quinolinic acid to investigate mechanisms underlying neurological disorders such as Huntington's disease, Alzheimer's disease, Parkinson's disease, and multiple sclerosis. Additionally, it is utilized in studies exploring the modulation of inflammatory pathways, oxidative stress, and neuronal cell signaling. In medicinal chemistry, it can be used as a building block for the synthesis of quinoline derivatives and related heterocyclic compounds.

Quinolinic acid offers significant advantages in research due to its well-characterized neuroactivity and chemical versatility. Its ability to selectively activate NMDA receptors makes it a valuable compound for modeling excitotoxic neuronal damage in vitro and in vivo, providing insights into neurodegeneration and neuroinflammation. The compound is also chemically stable and soluble in water, allowing for reproducible experimental conditions. Its role as a key intermediate in tryptophan metabolism studies enables researchers to probe metabolic pathways, enzyme activities, and the interplay between metabolism and neurobiology. Furthermore, quinolinic acid's structure allows derivatization for the synthesis of pharmacologically active heterocycles, supporting drug discovery and medicinal chemistry research.