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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:
20762-60-1
Molecular Weight:
81.12
EC Number:
244-013-1
UNSPSC Code:
12352125
PubChem Substance ID:
329765409
NACRES:
NA.22

Assay

≥99.9% trace metals basis

form

solid

mp

~300 °C (decomposition)

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
GHS06

Signal Word

Danger

Hazard Statements

H300

Precautionary Statements

P264 - P301 + P310

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
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)
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)
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

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