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CAS 64-20-0

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Tetramethylammonium bromide

Description:
Tetramethylammonium bromide (TMAB) is a quaternary ammonium salt with the chemical formula (CH₃)₄NBr. It appears as a white crystalline solid and is highly soluble in water and polar organic solvents. TMAB is known for its role as a phase transfer catalyst, facilitating the transfer of ions across immiscible phases in various chemical reactions. It exhibits properties typical of quaternary ammonium compounds, including a positive charge on the nitrogen atom, which contributes to its solubility and reactivity. TMAB is often used in organic synthesis, electrochemistry, and as a reagent in analytical chemistry. Additionally, it can serve as a surfactant due to its amphiphilic nature. While generally considered to have low toxicity, appropriate safety measures should be taken when handling TMAB, as with any chemical substance. Its stability under normal conditions makes it a valuable compound in both laboratory and industrial applications.
Formula:C4H12N·Br
InChI:InChI=1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
InChI key:InChIKey=DDFYFBUWEBINLX-UHFFFAOYSA-M
SMILES:[N+](C)(C)(C)C.[Br-]
Synonyms:
  • Ammonium, tetramethyl-, bromide
  • Bromure de tetramethylammonium
  • Bromuro De Tetrametilamonio
  • Methanaminium, N,N,N-trimethyl-, bromide (1:1)
  • Methyl, (dimethylamino)-, methobromide
  • Tetramethylammonium Bromide
  • Tetramethylammoniumbromid
  • Tmab
  • tetramethyl-ammoniubromide
  • Tetramethyl ammonium bromide
  • See more synonyms
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Found 8 products.
  • Tetramethylammonium Bromide

    CAS:
    Formula:C4H12BrN
    Purity:>97.0%(T)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:154.05

    Ref: 3B-T0135

    25g
    33.00€
    500g
    112.00€
  • Tetramethylammonium bromide, 98%

    CAS:
    <p>This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci</p>
    Formula:C4H12BrN
    Purity:98%
    Color and Shape:Crystals or powder or crystalline powder, White
    Molecular weight:154.05

    Ref: 02-A13368

    100g
    To inquire
    500g
    141.00€
    2500g
    To inquire
  • Tetramethylammonium bromide

    CAS:
    Formula:C4H12BrN
    Purity:98%
    Color and Shape:Solid
    Molecular weight:154.0488

    Ref: IN-DA003UQ0

    1kg
    113.00€
    25g
    21.00€
    100g
    26.00€
    500g
    70.00€
  • Tetramethylammonium bromide

    CAS:
    Tetramethylammonium bromide
    Purity:99%
    Molecular weight:154.05g/mol

    Ref: 54-OR72852

    100g
    44.00€
    25kg
    2,555.00€
    500g
    84.00€
    2.5kg
    284.00€
  • Tetramethylammonium bromide

    CAS:
    Formula:C4H12BrN
    Purity:≥ 99.0%
    Color and Shape:White crystalline powder or crystals
    Molecular weight:154.06

    Ref: 7W-GK7755

    100g
    33.00€
    250g
    60.00€
    500g
    89.00€
  • Tetramethylammonium bromide

    CAS:
    Formula:C4H12BrN
    Purity:98%
    Color and Shape:Solid
    Molecular weight:154.051

    Ref: 10-F494404

    100g
    25.00€
    500g
    62.00€
  • Tetramethylammonium Bromide-13C4

    Controlled Product
    CAS:
    Formula:C4H12N•Br
    Color and Shape:Neat
    Molecular weight:78.11 + 79.90

    Ref: TR-T889769

    25mg
    3,428.00€
  • Tetramethylammonium Bromide

    Controlled Product
    CAS:
    <p>Applications Tetramethylammonium Bromide (cas# 64-20-0) is a useful research chemical.<br></p>
    Formula:C4H12BrN
    Color and Shape:Neat
    Molecular weight:154.05

    Ref: TR-T889768

    250mg
    86.00€
    500mg
    103.00€
    2500mg
    120.00€