3-Hydroxykynurenine
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| Names | |
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| IUPAC name  2-Amino-4-(2-amino-3-hydroxyphenyl)-4-oxobutanoic acid   | |
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| MeSH | 3-hydroxykynurenine | 
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| Properties | |
| C10H12N2O4 | |
| Molar mass | 224.21 g/mol | 
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).  Infobox references   | |
3-Hydroxykynurenine is a metabolite of tryptophan, which filters UV light in the human lens.[1] It is one of two pigments identified as responsible for the goldenrod crab spider's (Misumena vatia) yellow coloration.

References
- ^ Malina, HZ; Martin, XD (1995). "Deamination of 3-hydroxykynurenine in bovine lenses: a possible mechanism of cataract formation in general". Graefes Arch Clin Exp Ophthalmol. 233 (1): 38–44. doi:10.1007/bf00177784. PMID 7721122. S2CID 25414197.
 - ^ Schwarcz, Robert; John P. Bruno; Paul J. Muchowski; Hui-Qiu Wu (July 2012). "Kynurenines in the Mammalian Brain: When Physiology Meets Pathology". Nature Reviews Neuroscience. 13 (7): 465–477. doi:10.1038/nrn3257. PMC 3681811. PMID 22678511.
 

