Quinolinic acid NEW
| Price | $30 |
| Package | 1g |
| Supply Ability: | 10g |
| Update Time: | 2026-05-26 |
Product Details
| Product Name: Quinolinic acid | CAS No.: 89-00-9 |
| Purity: 99.98% | Supply Ability: 10g |
| Release date: 2026/05/26 |
Product Introduction
Bioactivity
| Name | Quinolinic acid |
| Description | Quinolinic acid (QUIN) is an endogenous N-methyl-D-aspartate (NMDA) receptor agonist synthesized from L-tryptophan via the kynurenine pathway. |
| In vitro | QUIN has an uptake system, its neuronal degradation enzyme is rapidly saturated, and the rest of the extracellular QUIN can continue stimulating the NMDA receptor. QUIN (10?μM) prevents of glutamate-induced excitotoxicity in primary cultures of rat cerebellar granule neurons, nevertheless mature organotypic cultures of rat corticostriatal system or caudate nucleus chronically exposed to 100?nM QUIN for up to 7 weeks show focal degeneration characterized by the presence of vacuoles in neuropil, swollen dendrites, occasional swollen post-synaptic elements, and degenerated neurons. In vitro QUIN treatment of human primary fetal neurons leads to a substantial increase of tau phosphorylation at multiple positions. The increase in QUIN-induced phosphorylation of tau is attributed to a decrease in the expression and activity of the major tau phosphatases. QUIN can inhibit B monoamine oxidase (MAO-B) in human brain synaptosomal mitochondria and also can be a potent inhibitor of phosphoenolpyruvate carboxykinase (EC 4.1.1.32) from rat liver cytoplasm, an important enzyme in the gluconeogenesis pathway that converts oxaloacetate to phosphoenolpyruvate. QUIN can increase free radical production by inducing NOS activity in astrocytes and neurons, leading to oxidative stress, increasing both poly(ADP-ribose) polymerase (PARP) activity and extracellular lactate dehydrogenase (LDH) activity [1]. |
| In vivo | Quinolinic acid (QUIN), a neuroactive metabolite of the kynurenine pathway, is normally presented in nanomolar concentrations in human brain and cerebrospinal fluid (CSF) and is often implicated in the pathogenesis of a variety of human neurological diseases. The concentration of QUIN varies among different brain regions, with the cerebral cortex containing approximately 1.8?nmol/g wet weight; almost 2-fold than that found in the hippocampus (1?nmol/g wet weight). Intraarterial administration of either micromolar or millimolar concentrations of QUIN results in only negligible accumulations of this metabolite in the brain, suggesting that the central nervous system (CNS) appears to be well protected by the blood-brain barrier (BBB) from peripheral QUIN. QUIN can also increase glutamate release and inhibit its reuptake by astrocytes, thus increasing its concentration in the microenvironments, causing neurotoxicity and also limiting glutamate to glutamine recycling in astrocytes by decreasing glutamine synthetase activity. Intrastriatal injection of QUIN provokes a decrease in cellular respiration and ATP levels [1]. |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year Shipping with blue ice/Shipping at ambient temperature. |
| Solubility Information | 10% DMSO+40% PEG300+5% Tween 80+45% Saline : 2 mg/mL (11.97 mM), Sonication is recommended. DMSO : 250 mg/mL (1495.93 mM), Sonication is recommended. |
| Keywords | Quinolinic acid | NMDA receptor | iGluR | EndogenousMetabolite | Endogenous Metabolite |
| Inhibitors Related | Sucrose | Aceglutamide | Nicotinamide riboside malate | D(+)-Raffinose pentahydrate | Guanidine hydrochloride | Malic acid | Formamide | Glycerol | Thymidine | Corn starch | Gluconate Calcium | DL-Lysine |
| Related Compound Libraries | Anti-Tumor Natural Product Library | Bioactive Compound Library | Pain-Related Compound Library | Anti-Neurodegenerative Disease Compound Library | Membrane Protein-targeted Compound Library | Natural Product Library | Tobacco Monomer Library | Natural Product Library for HTS | Human Endogenous Metabolite Library | Bioactive Compounds Library Max | Gut Microbial Metabolite Library | Ion Channel Targeted Library |
Company Profile Introduction
Target Molecule Corp. (TargetMol) is a global high-tech enterprise, headquartered in Boston, MA, specializing in chemical and biological research product and service to meet the research needs of global customers.
TargetMol has evolved into one of the biggest global compound library and small molecule suppliers and a customer based on 40+ countries. TargetMol offers over 80 types of compound libraries and a wide range of high-quality research chemicals including inhibitors, activator, natural compounds, peptides, inhibitory antibodies, and novel life-science kits, for laboratory and scientific use. Besides, virtual screening service is also available for customers who would like to conduct the computer-aided drug discovery.
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