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Merck
CN

K3375

Kynurenic acid

≥98% (HPLC), powder, NMDA receptor antagonist

Synonym(s):

4-Hydroxyquinoline-2-carboxylic acid

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About This Item

Empirical Formula (Hill Notation):
C10H7NO3
CAS Number:
Molecular Weight:
189.17
NACRES:
NA.77
PubChem Substance ID:
UNSPSC Code:
12352106
EC Number:
207-751-5
MDL number:
Beilstein/REAXYS Number:
147451
Assay:
≥98%
Form:
powder
Quality level:
Technical Service
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Product Name

Kynurenic acid, ≥98%

Quality Level

assay

≥98%

form

powder

mp

275 °C (dec.) (lit.)

SMILES string

OC(=O)c1cc(O)c2ccccc2n1

InChI

1S/C10H7NO3/c12-9-5-8(10(13)14)11-7-4-2-1-3-6(7)9/h1-5H,(H,11,12)(H,13,14)

InChI key

HCZHHEIFKROPDY-UHFFFAOYSA-N

Application

Kynurenic acid has been used as a constituent in dissection saline solution for embryonic cerebral cortical cells and human primary astrocytes. It has also been used as a medium supplement for murine intestinal epithelial cell line, MODE-K and induced pluripotent stem cell (iPSC)-derived neurons cells.

Biochem/physiol Actions

Kynurenic acid (KynA) is a non-selective antagonist of N-methyl-d-aspartate (NMDA), α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and kainate receptors. It blocks kainic acid neurotoxicity. Kynurenic acid also blocks nicotinic acetylcholine receptors. It is a by-product of tryptophan catabolic pathway. Kynurenic acid is a neuromodulator and controls the levels of glutamate, dopamine, acetylcholine and α-aminobutyric acid (GABA). KynA controls neuroendocrine functions and altered levels of KynA is a potential marker in depression, schizophrenia Alzheimer′s and Huntington′s diseases. Normal levels of KynA in the brain is crucial for the cognitive function.

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.


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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



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Articles

DISCOVER Bioactive Small Molecules for Neuroscience


Kynurenic acid is a nutritional cue that enables behavioral plasticity
Lemieux GA, et al.
Cell, 160(1), 119-131 (2015)
Role of kynurenines in the neurotoxic actions of kainic acid
Behan WMH and Stone TW
British Journal of Pharmacology, 129(8), 1764-1770 (2000)
Kynurenine pathway inhibition as a therapeutic strategy for neuroprotection
Stone TW, et al.
FEBS Journal, 279(8), 1386-1397 (2012)



Global Trade Item Number

SKUGTIN
K3375-1G04061833901106
K3375-250MG04061833901113
K3375-5G04061833902004