859796
4-Imidazoleacrylic acid
99%
Synonym(s):
3-(4-Imidazolyl)acrylic acid, Urocanic acid
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About This Item
Empirical Formula (Hill Notation):
C6H6N2O2
CAS Number:
Molecular Weight:
138.12
UNSPSC Code:
12352005
NACRES:
NA.22
PubChem Substance ID:
EC Number:
203-258-4
Beilstein/REAXYS Number:
81405
MDL number:
Product Name
4-Imidazoleacrylic acid, 99%
InChI
1S/C6H6N2O2/c9-6(10)2-1-5-3-7-4-8-5/h1-4H,(H,7,8)(H,9,10)/b2-1+
InChI key
LOIYMIARKYCTBW-OWOJBTEDSA-N
SMILES string
OC(=O)\C=C\c1c[nH]cn1
biological source
synthetic
assay
99%
form
powder
mp
226-228 °C (lit.)
functional group
carboxylic acid
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Application
4-Imidazoleacrylic acid can be used as a precursor for the synthesis of (±)-homohistidine, urocanic acid-modified chitosan, and N1-aryl(heteroaryl)alkyl-N2-[3-(1H-imidazol-4-yl)propyl]guanidines,.
General description
4-Imidazoleacrylic acid also known as urocanic acid is a natural metabolite derived from histidine. It is majorly used as a UV chromophore with a strong absorption spectrum in the UV-B region in the range of 300-280 nm.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Anne J Keurentjes et al.
Frontiers in public health, 9, 602933-602933 (2021-03-23)
Introduction: Non-melanoma skin cancer (NMSC) incidence is increasing, and occupational solar exposure contributes greatly to the overall lifetime ultraviolet radiation (UVR) dose. This is reflected in an excess risk of NMSC showing up to three-fold increase in outdoor workers. Risk
Synthesis of (?)-homohistidine
Pirrung MC and Pei T
The Journal of Organic Chemistry, 65(7), 2229-2230 (2000)
Sabita Rana et al.
The American journal of pathology, 178(6), 2783-2791 (2011-06-07)
Exposure to UVB radiation before antigen delivery at an unirradiated site inhibits functional immunological responses. Mice treated dorsally with suberythemal low-dose UVB and immunized with ova in abdominal skin generated ova-specific CD8 T cells with a significantly decreased activation, expansion
Peter D Godfrey et al.
The Journal of chemical physics, 137(6), 064306-064306 (2012-08-18)
The microwave spectra of the two conformers each, of the 1H and 3H tautomers of 4-vinylimidazole, have been measured in the 48-72 GHz spectral region. The 4-vinylimidazole was generated in situ by the facile decarboxylation of urocanic acid at its
A theoretical study of the low-lying excited states of trans-and cis-urocanic acid
Page CS, et al.
The Journal of Physical Chemistry A, 103(48), 9864-9871 (1999)
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