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H1771

3-Hydroxy-DL-kynurenine

Synonym(s):

α,2-Diamino-3-hydroxy-γ-oxobenzenebutanoic acid

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About This Item

Empirical Formula (Hill Notation):
C10H12N2O4
CAS Number:
484-78-6
Molecular Weight:
224.21
NACRES:
NA.32
PubChem Substance ID:
24895482
UNSPSC Code:
12352204
MDL number:
MFCD00047832
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assay

≥98% (TLC)

Quality Segment

form

powder

solubility

1 M HCl: 49.00-51.00 mg/mL, clear to very slightly hazy

storage temp.

2-8°C

SMILES string

NC(CC(=O)c1cccc(O)c1N)C(O)=O

InChI

1S/C10H12N2O4/c11-6(10(15)16)4-8(14)5-2-1-3-7(13)9(5)12/h1-3,6,13H,4,11-12H2,(H,15,16)

InChI key

VCKPUUFAIGNJHC-UHFFFAOYSA-N

General description

3-Hydroxy-DL-kynurenine is a tryptophan metabolite with a molecular weight corresponding to 224Da. It is a chromophore or hydrophilic yellow compound present in the lens of the eye. 3-Hydroxy-DL-kynurenine is synthesized from kynurenine by the action of enzyme kynurenine 3-monooxygenase (KMO). It is metabolized to 3-hydroxyanthranilic acid and xanthurenic acid in the presence of enzymes kynureninase and kynurenine aminotransferases, respectively.

Application

3-Hydroxy-DL-kynurenine has been used:
  • as a substrate for the recombinant human kynureninase assay
  • as a reference standard in tandem mass spectrometry (MS/MS) analysis
  • as a control for quantifying serum 3-Hydroxy-DL-kynurenine levels in diabetic retinopathy patients

Biochem/physiol Actions

3-Hydroxy-DL-kynurenine (3-HKYN) has antioxidant functionality and prevents lipid peroxidation in cerebral cortex. It may modulate synaptic neurotransmission. The levels of 3-HKYN is elevated in Huntington′s disease. However, its role in neurodegenerative diseases is still not understood well. Kynurenine metabolism is linked with glutamatergic neurotransmission and the level of 3-HKYN is linked to the pathophysiology of schizophrenia.

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Codes

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

dust mask type N95 (US), Eyeshields, Gloves

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