Date published: 2026-4-30

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3-Hydroxy-DL-kynurenine (CAS 2147-61-7)

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Alternate Names:
α,2-Diamino-3-hydroxy-γ-oxobenzenebutanoic acid
Application:
3-Hydroxy-DL-kynurenine is a tryptophan metabolite
CAS Number:
2147-61-7
Purity:
≥98%
Molecular Weight:
224.21
Molecular Formula:
C10H12N2O4
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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3-Hydroxy-DL-kynurenine is a tryptophan metabolite that is a chromophore present in the lens of the eye. Within the field of neurobiology, 3-Hydroxy-DL-kynurenine has demonstrated its ability to influence the activity of the N-methyl-D-aspartate (NMDA) receptor, a component involved in fundamental processes like learning, memory, and synaptic plasticity. In the realm of immunology, 3-Hydroxy-DL-kynurenine has exhibited its capacity to regulate the functioning of immune cells, particularly T cells and macrophages. Furthermore, within the domain of cancer research, 3-Hydroxy-DL-kynurenine has shown promising anti-tumor properties.


3-Hydroxy-DL-kynurenine (CAS 2147-61-7) References

  1. Kynurenine aminotransferase and glutamine transaminase K of Escherichia coli: identity with aspartate aminotransferase.  |  Han, Q., et al. 2001. Biochem J. 360: 617-23. PMID: 11736651
  2. Kynurenine pyruvate transaminase and its specific inhibitor in rat intestine.  |  Kido, R. and Noguchi, T. 1975. Acta Vitaminol Enzymol. 29: 310-2. PMID: 1244114
  3. Crystal structure of Homo sapiens kynureninase.  |  Lima, S., et al. 2007. Biochemistry. 46: 2735-44. PMID: 17300176
  4. Anti-infectious activity of tryptophan metabolites in the L-tryptophan-L-kynurenine pathway.  |  Narui, K., et al. 2009. Biol Pharm Bull. 32: 41-4. PMID: 19122278
  5. Effects of kynurenine metabolites on mesangial cell proliferation and gene expression.  |  Yoshimura, H., et al. 2009. Exp Mol Pathol. 87: 70-5. PMID: 19268458
  6. Positive selection of a duplicated UV-sensitive visual pigment coincides with wing pigment evolution in Heliconius butterflies.  |  Briscoe, AD., et al. 2010. Proc Natl Acad Sci U S A. 107: 3628-33. PMID: 20133601
  7. UV photoreceptors and UV-yellow wing pigments in Heliconius butterflies allow a color signal to serve both mimicry and intraspecific communication.  |  Bybee, SM., et al. 2012. Am Nat. 179: 38-51. PMID: 22173459
  8. Human plasma lipofuscin melanins formed from tryptophan metabolites.  |  Hegedus, ZL., et al. 1986. Arch Int Physiol Biochim. 94: 339-48. PMID: 2440410
  9. Actinomycin synthesis in Streptomyces antibioticus: enzymatic conversion of 3-hydroxyanthranilic acid to 4-methyl-3-hydroxyanthranilic acid.  |  Jones, GH. 1987. J Bacteriol. 169: 5575-8. PMID: 2445729
  10. Citral reduces breast tumor growth by inhibiting the cancer stem cell marker ALDH1A3.  |  Thomas, ML., et al. 2016. Mol Oncol. 10: 1485-1496. PMID: 27592281
  11. Ultraviolet and yellow reflectance but not fluorescence is important for visual discrimination of conspecifics by Heliconius erato.  |  Finkbeiner, SD., et al. 2017. J Exp Biol. 220: 1267-1276. PMID: 28108668
  12. HPLC Gradient Retention of Tryptophan and its Metabolites on Three Stationary Phases in Context of Lipophilicity Assessment.  |  Wicha-Komsta, K., et al. 2021. J Chromatogr Sci. 59: 40-46. PMID: 33107556
  13. The influence of tryptophan and its metabolites upon rabbit lens electrolyte balance.  |  Kishida, K., et al. Curr Eye Res. 2: 309-15. PMID: 6219861

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

3-Hydroxy-DL-kynurenine, 25 mg

sc-214132
25 mg
$184.00

3-Hydroxy-DL-kynurenine, 100 mg

sc-214132A
100 mg
$490.00

3-Hydroxy-DL-kynurenine, 250 mg

sc-214132B
250 mg
$1050.00