188956
Sigma-Aldrich

4-PHENYLURAZOLE, 98%

Empform:

C8H7N3O2

Synonyms English:

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

Nacres: NA.22
Mdl No: MFCD00005226
Fw: 177.16
Pubchem Substance Id: 24851358
CAS Number: 15988-11-1
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Properties

Properties
assay 98%
Description 4-PHENYLURAZOLE, 98%
inchi 1S/C8H7N3O2/c12-7-9-10-8(13)11(7)6-4-2-1-3-5-6/h1-5H(H912)(H1013)
inchi key GOSUFRDROXZXLN-UHFFFAOYSA-N
Need written commitment NI0000

Description

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.

SAFETY INFORMATION

Signal Word

RIDADRRIDADR

WGK Germany

WGK 3

Flash Point (F)

Not applicable

Flash Point (C)

Not applicable

Target Organs

Risk Statement

Supplemental Hazard Statements

DOCUMENTATION

Certificate of Analysis View Sample COA
Certificate of Origin

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