5,7-Dichlorokynurenic acid sodium
Based on 1 publication(s) in Google Scholar
5,7-Dichlorokynurenic acid (5,7-DCKA) sodium is a selective and competitive antagonist of the glycine site on NMDA receptor with a KB of 65 nM. 5,7-Dichlorokynurenic acid sodium reduces NMDA-induced neuron injury. 5,7-Dichlorokynurenic acid sodium increases social interaction time, increases open arm exploration time, disinhibits suppressed conflict responding in rodent models. 5,7-Dichlorokynurenic acid sodium exhibits anxiolytic-like activity in rodent models and supports exploration of glycine’s role in NMDA receptor-mediated synaptic transmission.
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- CAS No.: 1184986-70-6
- Formula: C10H4Cl2NNaO3
- Molecular Weight:280.04
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications Citing Use of MedChemExpress (MCE) 5,7-Dichlorokynurenic acid sodium
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Biological Activity
Description
In Vitro
5,7-dichlorokynurenic acid (0.2-400 μM) sodium is a potent, competitive antagonist of the glycine site on NMDA receptors expressed in rat brain mRNA-injected Xenopus oocytes, with a KB of 65 nM, and is 509-fold more selective for this site than for kainate receptors[1].
5,7-dichlorokynurenic acid (40 nM-10 μM; 60 min on ice) sodium potently displaces [3H]glycine from strychnine-insensitive glycine sites on rat brain cortex membranes with a Ki of 40 nM, and does not bind to the NMDA recognition site at 10 μM[1].
5,7-dichlorokynurenic acid (1-10 μM) sodium reduces NMDA-induced neuronal injury in primary rat cortical cell cultures, with 1 μM yielding 55-79% protection and 10 μM yielding 62-90% protection[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
5,7-Dichlorokynurenic acid (100.0 mg/kg; i.p.; single dose) sodium produces anxiolytic-like effects in the elevated plus maze model, increasing open arm exploration time by +41% at 100.0 mg/kg, with reduced motor activity[2].
5,7-Dichlorokynurenic acid (100.0-173.0 mg/kg; i.p.; single dose) sodium disinhibits suppressed conflict responding in the Cook and Davidson conditioned anxiety model at 100.0 mg/kg and 173.0 mg/kg without altering non-punished responding[2].
5,7-Dichlorokynurenic acid (10.0-100.0 mg/kg; i.p.; single dose) sodium does not generalize to the MK-801 discriminative cue at 10.0 mg/kg, and shows minimal partial generalization in 1 of 4 rats at 100.0 mg/kg[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Wistar rats (male, 200-300 g)[2]
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Dosage:30.0 mg/kg; 100.0 mg/kg
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Administration:i.p.; single dose
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Result:Increased social interaction time significantly by +37% with no significant change in motor activity at 30.0 mg/kg.
Increased social interaction time significantly by +32%, and decreased motor activity significantly by -34% at 100.0 mg/kg.
Chemical Information
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CAS No. 1184986-70-6
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Molecular Weight 280.04
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Formula C10H4Cl2NNaO3
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SMILES
O=C(C1=NC2=CC(Cl)=CC(Cl)=C2C(O)=C1)O[Na]
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Synonyms
5,7-DCKA sodium
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications (1)
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Journal Impact Factor
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Most Recent
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Anal Chem
Exposome-Scale Investigation of Cl-/Br-Containing Chemicals Using High-Resolution Mass Spectrometry, Multistage Machine Learning, and Cloud Computing. [Abstract]2025 Jun 3;97(21):11099-11109. PMID: 40401576
Purity & Documentation
References
[1]. D McNamara, et al. 5,7-Dichlorokynurenic acid, a potent and selective competitive antagonist of the glycine site on NMDA receptors. Neurosci Lett. 1990 Nov 27;120(1):17-20. [Content Brief]
[2]. Corbett R, et al. Effects of 5,7 dichlorokynurenic acid on conflict, social interaction and plus maze behaviors. Neuropharmacology. 1993;32(5):461-466. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)