CNQX (disodium)

CNQX disodium (FG9065 disodium) is a potent and competitive AMPA/kainate receptor antagonist with IC50s of 0.3 μM and 1.5 μM, respectively. CNQX disodium is a competitive non-NMDA receptor antagonist[1]. CNQX disodium blocks the expression of fear-potentiated startle in rats[5].

Product Specifications

CAS Number

[479347-85-8]

Product Name Alternative

FG9065 (disodium)

UNSPSC

12352005

Hazard Statement

H302, H319, H372, H410

Target

IGluR

Type

Reference compound

Related Pathways

Membrane Transporter/Ion Channel; Neuronal Signaling

Applications

Neuroscience-Neurodegeneration

Field of Research

Neurological Disease

Assay Protocol

https://www.medchemexpress.com/cnqx-disodium.html

Purity

99.95

Solubility

DMSO : 10.53 mg/mL (ultrasonic; warming; adjust pH to 2 with HCl; heat to 70°C)

Smiles

N#CC1=CC2=C([N-]C(C([N-]2)=O)=O)C=C1[N+]([O-])=O.[Na+].[Na+]

Molecular Formula

C9H2N4Na2O4

Molecular Weight

276.12

Precautions

H302, H319, H372, H410

References & Citations

[1]T Honoré, et al. Quinoxalinediones: Potent Competitive non-NMDA Glutamate Receptor Antagonists. Science. 1988 Aug 5;241 (4866) :701-3.|[2]Alford S, et al. CNQX and DNQX block non-NMDA synaptic transmission but not NMDA-evoked locomotion in lamprey spinal cord. Brain Res. 1990 Jan 8;506 (2) :297-302.|[3]Neuman RS, et al. Blockade of excitatory synaptic transmission by 6-cyano-7-nitroquinoxaline-2,3-dione (CNQX) in the hippocampus in vitro. Neurosci Lett. 1988 Sep 23;92 (1) :64-8.|[4]Kim M, et al. Infusion of the non-NMDA receptor antagonist CNQX into the amygdala blocks the expression of fear-potentiated startle. Behav Neural Biol. 1993 Jan;59 (1) :5-8.|[5]Pia Bäckström, et al. Attenuation of Cocaine-Seeking Behaviour by the AMPA/kainate Receptor Antagonist CNQX in Rats. Psychopharmacology (Berl) . 2003 Feb;166 (1) :69-76.