3-Hydroxykynurenine

3-Hydroxykynurenine is a metabolite of tryptophan, which filters UV light in the human lens. It is one of two pigments identified as responsible for the goldenrod crab spider's (Misumena vatia) yellow coloration.

3-Hydroxykynurenine

Names
IUPAC name 2-Amino-4-(2-amino-3-hydroxyphenyl)-4-oxobutanoic acid
Identifiers
CAS Number	484-78-6 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:1547 Y
ChEMBL	ChEMBL442576 Y
ChemSpider	87 Y
KEGG	C02794 Y
MeSH	3-hydroxykynurenine
PubChem CID	89
UNII	27723548JL Y
InChI 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) Y Key: VCKPUUFAIGNJHC-UHFFFAOYSA-N Y InChI=1/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) Key: VCKPUUFAIGNJHC-UHFFFAOYAF
SMILES O=C(O)C(N)CC(=O)c1cccc(O)c1N
Properties
Chemical formula	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). N verify (what is YN ?) Infobox references

The Kynurenine pathway, which connects quinolinic acid to tryptophan. The pathway is named for the first intermediate, kynurenine, which is a precursor to kynurenic acid and 3-hydroxykynurenine.

See also

• Kynurenine
• Ommochrome