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4-Phenylurazole

ALDRICH/188956 - 98%

Synonym: 4-Phenyl-1,2,4-triazolidine-3,5-dione; Ph-Ur for e-Y-CLICK

CAS Number: 15988-11-1
Empirical Formula (Hill Notation): C8H7N3O2
Molecular Weight: 177.16
EC Number: 240-127-0
MDL Number: MFCD00005226
Linear Formula: C8H7N3O2
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-188956-25G 25 g
 $124.00
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assay 98%
InChI 1S/C8H7N3O2/c12-7-9-10-8(13)11(7)6-4-2-1-3-5-6/h1-5H,(H,9,12)(H,10,13)
InChI key GOSUFRDROXZXLN-UHFFFAOYSA-N
mp 207-209 °C (lit.)
Quality Level 100 
SMILES string O=C1NNC(=O)N1c2ccccc2
General description: 4-Phenylurazole undergoes oxidation in the presence of NO2-N2O4 to yield 4-phenyl-1,2,4-trizoline-3,5-dione. It undergoes acetylation reaction with excess acetyl chloride in N,N-dimethylacetamide solution. It polymerizes in the presence of phosgene, terephthaloyl chloride and epichlorohydrin to yield insoluble polymer. It is precursor to the Diels-Alder trapping agent, 4-phenyl-1,2,4-triazoline-3,5-dione. This urazole was recently demonstrated in the traceless, chemoselective labeling of peptides and proteins through electrochemical tyrosine-click (e-Y-CLICK) chemistry.
Other Notes: Electrochemically Promoted Tyrosine-Click-Chemistry for Protein Labeling 
Packaging: 25 g in glass bottle
RIDADR NONH for all modes of transport
WGK Germany WGK 3
Flash Point(F) Not applicable
Flash Point(C) Not applicable
Purity 98%
mp 207-209 °C (lit.)
UNSPSC 12352100

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