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441902

Cesium carbonate

Name: Cesium carbonate
Brand: ALDRICH

ReagentPlus^®, 99%

Synonym(s):

Carbonic acid dicesium

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About This Item

Linear Formula:

Cs₂CO₃

CAS Number:

534-17-8

Molecular Weight:

325.82

UNSPSC Code:

12352301

NACRES:

NA.22

PubChem Substance ID:

24867711

EC Number:

208-591-9

Beilstein/REAXYS Number:

4546405

MDL number:

MFCD00010957

Assay:

99%

Form:

powder and chunks

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Properties

Quality Segment

200

product line

ReagentPlus^®

assay

99%

form

powder and chunks

pH range

10-13 (68 °F, 50 g/L)

mp

610 °C (dec.) (lit.)

solubility

water: soluble

density

4.072 g/cm³ at 20 °C

SMILES string

[Cs+].[Cs+].[O-]C([O-])=O

InChI

1S/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChI key

FJDQFPXHSGXQBY-UHFFFAOYSA-L

Description

General description

Cesium carbonate is a powerful inorganic base widely used in organic synthesis. It is a potential chemoselective catalyst for the reduction of aldehydes and ketones to alcohols. It is employed as base for the Heck coupling reaction of 4-trifluoromethyl-1-chlorobenzene and aryl chlorides.

Application

Cesium carbonate can be used as a base in C-C and C-N cross-coupling reactions such as Suzuki−Miyaura, Heck, and Buchwald-Hartwig amination reactions. It is also used as a base in alkylation reactions.

Promotes the efficient O-alkylation of alcohols to form mixed alkyl carbonates.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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Pictograms

GHS08,GHS05

Signal Word

Danger

Hazard Codes

H318,H361f,H373

Precautionary Statements

P202 - P260 - P280 - P305 + P351 + P338 - P308 + P313 - P405

Hazard Classifications

Eye Dam. 1 - Repr. 2 - STOT RE 2 Oral

Target Organs

Kidney,Adrenal gland,Testes

Storage Class

13 - Non Combustible Solids

WGK

WGK 2

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

dust mask type N95 (US), Eyeshields, Gloves

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