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KYNURENIC ACID

Product Name
KYNURENIC ACID
CAS No.
492-27-3
Chemical Name
KYNURENIC ACID
Synonyms
L667;NSC 58973;AKOS 235-06;KYNURENIC ACID;Quinurenic acid.;TIMTEC-BB SBB003671;KYNURENIC ACID PURE;2H5]-Kynurenic acid;4-HYDROXYQUINALDIC ACID;KynurenicAcidHydrate>
CBNumber
CB3711231
Molecular Formula
C10H7NO3
Formula Weight
189.17
MOL File
492-27-3.mol
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KYNURENIC ACID Property

Melting point:
275 °C (dec.)(lit.)
Boiling point:
324.41°C (rough estimate)
Density 
1.3175 (rough estimate)
refractive index 
1.5400 (estimate)
storage temp. 
Sealed in dry,Room Temperature
solubility 
DMSO : 9 mg/mL (47.58 mM; Need ultrasonic and warming)
form 
Off-white to tan powder.
pka
1.08±0.30(Predicted)
color 
White to Gray to Brown
Water Solubility 
8.92g/L(100 ºC)
Merck 
14,5327
BRN 
147451
CAS DataBase Reference
492-27-3(CAS DataBase Reference)
EPA Substance Registry System
2-Quinolinecarboxylic acid, 4-hydroxy- (492-27-3)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
RTECS 
UZ9300000
HS Code 
2933.49.7000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
K3375
Product name
Kynurenic acid
Purity
≥98%
Packaging
250mg
Price
$21.2
Updated
2025/07/31
Sigma-Aldrich
Product number
K3375
Product name
Kynurenic acid
Purity
≥98%
Packaging
5g
Price
$168
Updated
2025/07/31
Sigma-Aldrich
Product number
94539
Product name
Kynurenic acid
Purity
analytical standard
Packaging
1 unit
Price
$97.2
Updated
2025/07/31
TCI Chemical
Product number
H0303
Product name
Kynurenic Acid Hydrate
Purity
>98.0%(T)(HPLC)
Packaging
1g
Price
$53
Updated
2025/07/31
TCI Chemical
Product number
H0303
Product name
Kynurenic Acid Hydrate
Purity
>98.0%(T)(HPLC)
Packaging
5g
Price
$143
Updated
2025/07/31
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KYNURENIC ACID Chemical Properties,Usage,Production

Uses

An antagonist of NMDA and AMPA/kainate receptors

Uses

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.

Uses

A product of L-Tryptophan metabolism, possessing neruoactive activity having antiexcitotoxic and anticonvulsant properties.

Definition

ChEBI: Kynurenic acid is a quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4. It has a role as a G-protein-coupled receptor agonist, a NMDA receptor antagonist, a nicotinic antagonist, a neuroprotective agent, a human metabolite and a Saccharomyces cerevisiae metabolite. It is a monohydroxyquinoline and a quinolinemonocarboxylic acid. It is a conjugate acid of a kynurenate.

Biological Activity

Broad spectrum EAA antagonist.

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.

storage

Room temperature

Purification Methods

Crystallise the acid from absolute EtOH. The methyl ester crystallises from MeOH with m 224-226o. [Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 p2723 1961, Beilstein 22 II 174, 22 III/IV 2245, 22/6 V 280.]

KYNURENIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from KYNURENIC ACID manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
KYNURENIC ACID 492-27-3
Price
US $1.00-100.00/KG
Min. Order
1KG
Purity
95%
Supply Ability
700KG
Release date
2024-07-16

492-27-3, KYNURENIC ACIDRelated Search:


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