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Key Documents

K8625

Sigma-Aldrich

L-Kynurenine

≥98% (HPLC)

Synonym(s):

β-Anthraniloyl-L-alanine, L-2-Amino-4-(2-aminophenyl)-4-oxobutanoic acid

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About This Item

Empirical Formula (Hill Notation):
C10H12N2O3
CAS Number:
Molecular Weight:
208.21
MDL number:
UNSPSC Code:
12352209
PubChem Substance ID:
NACRES:
NA.26

product name

L-Kynurenine, ≥98% (HPLC)

Quality Level

assay

≥98% (HPLC)

form

powder

mp

219 °C

application(s)

detection

SMILES string

N[C@@H](CC(=O)c1ccccc1N)C(O)=O

InChI

1S/C10H12N2O3/c11-7-4-2-1-3-6(7)9(13)5-8(12)10(14)15/h1-4,8H,5,11-12H2,(H,14,15)/t8-/m0/s1

InChI key

YGPSJZOEDVAXAB-QMMMGPOBSA-N

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Application

L-Kynurenine has been used as a standard for indoleamine-2,3-dioxygenase (IDO) assay. It has also been used as a standard to extract and quantify kynurenine from cultured cells and media.

Biochem/physiol Actions

L-Kynurenine is a key intermediate in the breakdown of L-tryptophan and the formation of nicotinamide adenine dinucleotide (NAD+) via the kynurenine pathway. It is involved in a variety of neurological processes and diseases. L-Kynurenine is a substrate for kynureninase/kynurenine hydrolase; kynurenine 3-monooxygenase and kynurenine-oxoglutarate transaminase.
Key intermediate in the breakdown pathway of tryptophan.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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The Involvement of Neuroinflammation and Kynurenine Pathway in Parkinson's Disease
Anna Zinger
Parkinson's Disease (2011)
Kynurenine Pathway Metabolites in Humans: Disease and Healthy States
Yiquan Chen
International Journal of Tryptophan Research : IJTR, 2, 1-19 (2009)
Evaluation of radiofluorinated carboximidamides as potential IDO-targeted PET tracers for cancer imaging
Xuan Huang
Oncotarget, 8(29), 46900-46914 (2017)
Extraction and Quantification of Tryptophan and Kynurenine from Cultured Cells and Media Using a High Performance Liquid Chromatography (HPLC) System Equipped with an Ultra-Sensitive Diode Array Detector
Jeffrey Kim
Bio-protocol, 6(7), e1781-e1781 (2016)
Cara C Schafer et al.
Oncotarget, 7(46), 75407-75424 (2016-10-06)
Indoleamine 2,3-dioxygenase (IDO) has been implicated in immune evasion by tumors. Upregulation of this tryptophan (Trp)-catabolizing enzyme, in tumor cells and myeloid-derived suppressor cells (MDSCs) within the tumor microenvironment (TME), leads to Trp depletion that impairs cytotoxic T cell responses

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