140023

Tetraethylammonium bromide

reagent grade, 98%

• Synonym(s): TEAB, TEA bromide
• Linear Formula: (C₂H₅)₄N(Br)
• CAS Number: 71-91-0
• Molecular Weight: 210.16
• Beilstein: 3563430
• EC Number: 200-769-4
• MDL number: MFCD00011825
• UNSPSC Code: 12352107
• PubChem Substance ID: 24848444
• NACRES: NA.22

Properties

• grade: reagent grade
• Assay: 98%
• form: crystalline
• impurities: ≤2% triethylamine hydrobromide
• pH: 6.5 (100 g/L)
• mp: 285 °C (dec.) (lit.)
• SMILES string: [Br-].CC[N+](CC)(CC)CC
• InChI: 1S/C8H20N.BrH/c1-5-9(6-2,7-3)8-4;/h5-8H2,1-4H3;1H/q+1;/p-1
• InChI key: HWCKGOZZJDHMNC-UHFFFAOYSA-M

Description

Application

Tetraethylammonium bromide may be used:

• As an organic template for synthesizing zeolite beta via hydrothermal crystallization.
• As a catalyst for the oxidative coupling of aldehydes or alcohols with thiophenols or disulfides to form thioesters.
• In combination with o-iodoxybenzoic acid (IBX) for the oxidative dehomologation of primary carboxamides to nitriles and α,α-disubstituted acetamides to ketones. This reagent combination can also be used for the conversion of sulfides to sulfoxides and N,N-disubstituted glycylamides into corresponding cyanamides.

Safety Information

• Hazard Statements: H412
• Precautionary Statements: P273 - P501
• Hazard Classifications: Aquatic Chronic 3
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): 361.4 °F - closed cup
• Flash Point(C): 183 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves