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289345

Sigma-Aldrich

Cesium fluoride

99.9% trace metals basis

Sinónimos:

NSC 84270

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About This Item

Fórmula empírica (notación de Hill):
CsF
Número de CAS:
13400-13-0
Peso molecular:
151.90
EC Number:
236-487-3
MDL number:
MFCD00010960
UNSPSC Code:
12352302
PubChem Substance ID:
24857410
NACRES:
NA.22

Quality Level

200

assay

99.9% trace metals basis

mp

682 °C (lit.)

density

4.115 g/mL at 25 °C (lit.)

SMILES string

[F-].[Cs+]

InChI

1S/Cs.FH/h;1H/q+1;/p-1

InChI key

XJHCXCQVJFPJIK-UHFFFAOYSA-M

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Application

Reactant for:
  • Preparation of building blocks for synthesis of fluoroallylic compounds
  • Synthesis of alcohols via hydrolysis of alkyl silyl ethers at neutral pH in buffered mixed organic-aqueous solutions
  • Nucleophilic fluorination of alkynyliodonium salts to form fluorovinylic compounds
  • Nucleophilic aromatic substitution (SNAr) reactions
Used in the successful synthesis of a single-crystal Dion-Jacobson phase, CsLaTa2O7, that has applications in photocatalysis and superconductivity.
Used as a base in a Suzuki cross-coupling synthesis of ortho-substituted biaryls. Also employed as a reagent for nucleophilic fluorination of primary halides and sulfonates in protic media such as tert-butyl and tert-pentyl alcohols.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Repr. 2 - STOT RE 2

target_organs

Kidney,Adrenal gland

supp_hazards

EUH032

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificados de análisis (COA)

Lot/Batch Number
0000303266
0000244990
0000179465
0000207365
MKCB4862

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Journal of Organometallic Chemistry, 691, 5688-5688 (2006)
Dong Wook Kim et al.
Journal of the American Chemical Society, 128(50), 16394-16397 (2006-12-15)
Aprotic solvents are usually preferred for the SN2 reactions, because nucleophilicity and hence SN2 reactivity are severely retarded by the influence of the partial positive charge of protic solvents. In this work, we introduce a remarkable effect of using tertiary
Katsushi Kitahara et al.
Organic letters, 10(11), 2259-2261 (2008-05-01)
A variety of oximes were synthesized from the corresponding alcohols, alkyl halides, or alkyl sulfonates without using external oxidants. With this simple two-step procedure involving substitution with readily available TsNHOTBS and subsequent treatment with CsF, a range of oximes were
Jonathan L Sessler et al.
Journal of the American Chemical Society, 130(39), 13162-13166 (2008-09-09)
An ion-pair receptor, 1, containing both cation- and anion-recognizing sites, has been synthesized and characterized. Single-crystal X-ray diffraction structural studies and (1)H NMR spectroscopic analyses confirmed that 1 forms stable 1:1 complexes with CsF in solution and in the solid
L Bertollini et al.
Neuroreport, 5(5), 553-556 (1994-01-31)
The effect of intracellular fluoride ions on voltage-dependent calcium currents was tested during whole-cell voltage-clamp recordings in thalamic neurones acutely dissociated from young adult rats. It is demonstrated that 5-30 mM intracellular fluoride selectively and reversibly suppresses the high voltage-activated
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