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D0540

Sigma-Aldrich

DNQX

≥98% (TLC)

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Synonym(s):
6,7-Dinitroquinoxaline-2,3(1H,4H)-dione
Empirical Formula (Hill Notation):
C8H4N4O6
CAS Number:
Molecular Weight:
252.14
MDL number:
PubChem Substance ID:
NACRES:
NA.77

Quality Level

assay

≥98% (TLC)

form

powder

SMILES string

[O-][N+](=O)c1cc2NC(=O)C(=O)Nc2cc1[N+]([O-])=O

InChI

1S/C8H4N4O6/c13-7-8(14)10-4-2-6(12(17)18)5(11(15)16)1-3(4)9-7/h1-2H,(H,9,13)(H,10,14)

InChI key

RWVIMCIPOAXUDG-UHFFFAOYSA-N

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DNQX ≥98% (TLC)

D0540

DNQX

7-(2,3-Dihydroxypropyl)theophylline

D0633

7-(2,3-Dihydroxypropyl)theophylline

1,7-Dimethylxanthine ~98%, solid

D5385

1,7-Dimethylxanthine

CNQX ≥98% (HPLC), solid

C127

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form

powder

form

powder

form

solid

form

solid

Quality Level

200

Quality Level

-

Quality Level

200

Quality Level

100

Gene Information

human ... GRIA1(2890), GRIA2(2891), GRIK1(2897), GRIK2(2898), GRIK3(2899), GRIK4(2900), GRIK5(2901)
mouse ... Gria1(14799)
rat ... Gria1(50592), Grik1(29559), Grik4(24406), Grin2a(24409)

Gene Information

human ... PDE3A(5139), PDE4A(5141), PDE4B(5142), PDE4C(5143), PDE4D(5144)

Gene Information

human ... ADORA1(134), ADORA2A(135), ADORA2B(136), ADORA3(140)
rat ... Adora1(29290), Adora2a(25369)

Gene Information

rat ... Gria1(50592), Grik1(29559), Grik2(54257), Grik4(24406), Grin2a(24409)

Application

DNQX has been used to block N-Methyl-D-aspartic acid (NMDA) and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors in various experiments.

Biochem/physiol Actions

DNQX is a quinoxaline derivative.
A competitive kainate, quisqualate (non-NMDA) glutamate receptor antagonist.

Features and Benefits

This compound is a featured product for Neuroscience research. Click here to discover more featured Neuroscience products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is featured on the Glutamate Receptors (Ion Channel Family) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

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Rei Yamada et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 33(9), 3927-3938 (2013-03-01)
Neurons in the nucleus laminaris (NL) of birds detect the coincidence of binaural excitatory inputs from the nucleus magnocellularis (NM) on both sides and process the interaural time differences (ITDs) for sound localization. Sustained inhibition from the superior olivary nucleus
Differential Desensitization Observed at Multiple Effectors of Somatic mu-Opioid Receptors Underlies Sustained Agonist-Mediated Inhibition of Proopiomelanocortin Neuron Activity
Fox PD and Hentges ST
The Journal of Neuroscience, 37(36), 8667-8677 (2017)
J Waider et al.
Translational psychiatry, 7(10), e1246-e1246 (2017-10-04)
Multiple lines of evidence implicate brain serotonin (5-hydroxytryptamine; 5-HT) system dysfunction in the pathophysiology of stressor-related and anxiety disorders. Here we investigate the influence of constitutively deficient 5-HT synthesis on stressor-related anxiety-like behaviors using Tryptophan hydroxylase 2 (Tph2) mutant mice.
Focal activation of neuronal circuits induced by microstimulation in the visual cortex
Tanaka Y, et al.
Journal of Neural Engineering, 16(3), 036007-036007 (2019)
James M Otis et al.
Neuron, 103(3), 423-431 (2019-06-15)
The paraventricular thalamus (PVT) is an interface for brain reward circuits, with input signals arising from structures, such as prefrontal cortex and hypothalamus, that are broadcast to downstream limbic targets. However, the precise synaptic connectivity, activity, and function of PVT circuitry

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