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740411

Sigma-Aldrich

Potassium azide

≥99.9% trace metals basis

Synonym(s):

Azidopotassium

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About This Item

Empirical Formula (Hill Notation):
KN3
CAS Number:
Molecular Weight:
81.12
EC Number:
UNSPSC Code:
12352125
PubChem Substance ID:
NACRES:
NA.22

Assay

≥99.9% trace metals basis

form

solid

mp

~300 °C (decomposition)

functional group

azide

SMILES string

[K+].[N-]=[N+]=[N-]

InChI

1S/K.N3/c;1-3-2/q+1;-1

InChI key

TZLVRPLSVNESQC-UHFFFAOYSA-N

Application

Potassium azide can be used as a reagent to synthesize:
  • 3-O-(3-Azidoopropyl)estrone from 3-O-(3-methanesulfonyloxypropoxy)estrone via nucleophilic azidation in the presence of imidazolium catalyst.
  • Azido phenacyl derivatives from α-bromoacetophenone derivatives in the presence of tetrabutylammonium bromide as a catalyst.
  • 1-Azido-4-fluorobenzene from potassium (4-fluorophenyl)trifluoroborate in the presence of cupric triflate as a catalyst.

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 2 Oral

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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An efficient method for synthesis of phenacyl derivatives under homogeneous phase transfer catalyst condition in aqueous media
Sayyahi S, et al.
Chinese Chemical Letters = Zhongguo Hua Xue Kuai Bao, 22, 300-302 (2011)
A M Liashchuk et al.
Zhurnal mikrobiologii, epidemiologii, i immunobiologii, (4)(4), 65-68 (2006-09-01)
A highly purified TUL4-CBD chimeric protein was obtained by one stage purification method. TUL4-CBD protein consists of TUL4 Francisella tularensis mature peptide sequence, Gly-Ser spacer and cellulose binding domain (CBD) of Anaerocellum thermophilum. The TUL4-CBD protein was shown to induce
A M Egorov et al.
Biochimica et biophysica acta, 659(1), 141-149 (1981-05-14)
Modification of 12 arginine residues per molecule of formate dehydrogenase (formate : NAD+ oxidoreductase, EC 1.2.1.2.) from the methylotrophic bacterium, Achromobacter parvulus I, by 2,3-butanedione results in complete inactivation of the enzyme. Inactivation of the enzyme is reversible and proceeds
tert-Alcohol-functionalized imidazolium ionic liquid: catalyst for mild nucleophilic substitution reactions at room temperature
Shinde S, et al.
Tetrahedron Letters, 50, 6654-6657 (2009)

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