Urocanic acid

Urocanic acid
Names
Preferred IUPAC name
(2E)-3-(1H-imidazol-4-yl)prop-2-enoic acid
Other names
(E)-3-(1H-imidazol-4-yl)acrylic acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.002.963
MeSH Urocanic+acid
UNII
  • InChI=1S/C6H6N2O2/c9-6(10)2-1-5-3-7-4-8-5/h1-4H,(H,7,8)(H,9,10)/b2-1+ N
    Key: LOIYMIARKYCTBW-OWOJBTEDSA-N N
  • InChI=1/C6H6N2O2/c9-6(10)2-1-5-3-7-4-8-5/h1-4H,(H,7,8)(H,9,10)/b2-1+
    Key: LOIYMIARKYCTBW-OWOJBTEDBA
  • c1c(nc[nH]1)/C=C/C(=O)O
Properties
C6H6N2O2
Molar mass 138.124 g/mol
Melting point 225 °C (437 °F; 498 K)
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

Urocanic acid (formally trans-Urocanic acid) is an intermediate in the catabolism of L-histidine. The cis-urocanic acid isomer is rare.

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