3465-72-3

Basic information

• Product Name: (2E)-3-(1H-Imidazole-4-yl)propenoic acid
• Synonyms: (2E)-3-(1H-Imidazole-4-yl)acrylic acid;(2E)-3-(1H-Imidazole-4-yl)propenoic acid;(E)-3-(1H-Imidazol-4-yl)propenoic acid;(E)-Urocanic acid;(αE)-1H-Imidazole-4-acrylic acid;trans-Urocanic acid;(2E)-3-(1H-Imidazol-4-yl)acrylic acid;(2E)-3-(1H-Imidazol-4-yl)prop-2-enoic acid
• CAS NO: 3465-72-3
• Molecular Formula: C₆H₆N₂O₂
• Molecular Weight: 138.124
• EINECS: 203-258-4
• Mol File: 3465-72-3.mol
• Article Data: 9

Chemical Properties

• Melting Point: 225 °C
• Boiling Point: 456.9 °C at 760 mmHg
• Flash Point: 230.1 °C
• Appearance: /
• Density: 1.43 g/cm³
• Storage Temp.: 2-8°C
• CAS DataBase Reference: (2E)-3-(1H-Imidazole-4-yl)propenoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: (2E)-3-(1H-Imidazole-4-yl)propenoic acid(3465-72-3)
• EPA Substance Registry System: (2E)-3-(1H-Imidazole-4-yl)propenoic acid(3465-72-3)

Safety Data

• Hazardous Substances Data: 3465-72-3(Hazardous Substances Data)

Usage

Definition

ChEBI: The trans-isomer of urocanic acid.

Upstream product

• 71-00-1 D,L-histidine 
• 71-00-1 L-histidine 
• 3034-50-2 5-imidazolecarboxaldehyde 
• 141-82-2 malonic acid 
• 645-65-8 2-(1H-imidazol-4-yl)acetic acid 
• 541-88-8 Chloroacetic anhydride 
• 507-29-9 hercynine 
• 7699-35-6 (Z)-urocanic acid 
• 71-00-1 L-histidine 
• 6630-42-8 2-chloro-3-(1H-imidazol-4-yl)propanoic acid 
• 178764-94-8 (1⁽³⁾H-imidazol-4-ylmethylene)-malonic acid 

Downstream Products

• 130647-67-5 (E)-3-(3H-Imidazol-4-yl)-acrylic acid heptyl ester; compound with toluene-4-sulfonic acid 
• 130647-71-1 (E)-3-(3H-Imidazol-4-yl)-acrylic acid decyl ester; compound with toluene-4-sulfonic acid 
• 130647-73-3 (E)-3-(3H-Imidazol-4-yl)-acrylic acid dodecyl ester; compound with toluene-4-sulfonic acid 
• 130647-75-5 (E)-3-(3H-Imidazol-4-yl)-acrylic acid tetradecyl ester; compound with toluene-4-sulfonic acid 
• 130647-77-7 (E)-3-(3H-Imidazol-4-yl)-acrylic acid hexadecyl ester; compound with toluene-4-sulfonic acid 
• 130647-63-1 (E)-3-(3H-Imidazol-4-yl)-acrylic acid butyl ester; compound with toluene-4-sulfonic acid 
• 3718-04-5 4⁽⁵⁾-vinyl imidazole 
• 71-00-1 L-histidine 
• 54260-89-8 trans-4-imidazoleacrylic acid methyl ester hydrochloride 
• 70346-51-9 methyl (E)-3-(1H-imidazol-5-yl)prop-2-enoate 
• 345624-98-8 4-((E)-2-Carboxy-vinyl)-imidazole-1-carboxylic acid benzyl ester 
• 152029-89-5 p-Nitrophenyl trans-3-(1H-imidazol-4-yl)-2-propenoate 
• 53958-93-3 3-(4-imidazolyl)propionic acid monohydrochloride 
• 1074-59-5 3-(1H-imidazol-5-yl)propanoic acid 

Relevant articles and documents

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Evidence for azidyl radical initiated olefin isomerization. One-way isomerization of (Z)-Urocanic acid

(Z)-Urocanic acid (cis-UA), unlike its (E) isomer (trans-UA), undergoes photoisomerization in the presence of nitro blue tetrazolium (NBT2+) and sodium azide. Evidence is presented that the photoisomerization involves the reversible addition of the azidyl radical to the double bond.

A solid oxide fuel cell fuel electrode material

PROBLEM TO BE SOLVED: To provide a material capable of showing excellent conductivity as a fuel cell material of a solid oxide fuel cell. SOLUTION: In the electrode material used for a fuel electrode of the solid oxide fuel cell and related to its manufacturing method, the material has a composition including a nickel oxide as a first component, a zirconium oxide as a second component, and at least one kind among a scandium oxide, an yttrium oxide, and a calcium oxide as a third component, and the material is powder wherein a pore volume is 0.1 cm3/g or larger and a pore rate is 20% or higher. COPYRIGHT: (C)2009,JPOandINPIT