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CAS 10424-65-4

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Tetramethylammonium hydroxide pentahydrate

Description:
Tetramethylammonium hydroxide pentahydrate (TMAH) is a quaternary ammonium compound with the chemical formula (CH₃)₄NOH·5H₂O. It appears as a colorless to pale yellow solid that is highly soluble in water, forming a strongly alkaline solution. TMAH is known for its strong basicity, which is attributed to the presence of the hydroxide ion. This compound is commonly used in various applications, including as a developer in photolithography processes in the semiconductor industry, as well as in organic synthesis and as a reagent in analytical chemistry. Due to its strong alkaline nature, TMAH can be corrosive and poses health hazards, necessitating careful handling and appropriate safety measures. It can also act as a surfactant and is utilized in some cleaning applications. The pentahydrate form indicates that it contains five molecules of water, which can influence its physical properties and stability. Overall, TMAH is a versatile chemical with significant industrial relevance, but it requires caution due to its corrosive characteristics.
Formula:C4H12N·5H2O·HO
InChI:InChI=1S/C4H12N.6H2O/c1-5(2,3)4;;;;;;/h1-4H3;6*1H2/q+1;;;;;;/p-1
InChI key:InChIKey=MYXKPFMQWULLOH-UHFFFAOYSA-M
SMILES:[N+](C)(C)(C)C.[OH-].O
Synonyms:
  • Ammonium, tetramethyl-, hydroxide, pentahydrate
  • Methanaminium, N,N,N-trimethyl-, hydroxide, hydrate (1:1:5)
  • Methanaminium, N,N,N-trimethyl-, hydroxide, pentahydrate
  • N,N,N-trimethylmethanaminium hydroxide
  • N,N,N-trimethylmethanaminium hydroxide hydrate (1:1:5)
  • Tetramethylammonium hydroxide pentahydrate
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Found 8 products.
  • Tetramethylammonium hydroxide pentahydrate, 98%

    CAS:
    <p>Tetramethylammonium hydroxide pentahydrate is used in analytical chemistry as an ion pairing agent and a polarographic reagent. It finds application in gas chromatography/mass spectrometry (GC/MS), capillary isotachophoresis and capillary zone electrophoresis and liquid chromatography. Furthermore, </p>
    Formula:C4H23NO6
    Purity:98%
    Color and Shape:Crystals or powder or crystalline powder, White or pale cream
    Molecular weight:181.23

    Ref: 02-L09658

    25g
    61.00€
    100g
    173.00€
  • Tetramethylammonium hydroxide pentahydrate

    CAS:
    Formula:C4H23NO6
    Purity:97%
    Color and Shape:Solid
    Molecular weight:181.2285

    Ref: IN-DA003UQ4

    25g
    25.00€
    100g
    31.00€
    500g
    68.00€
  • Tetramethylammonium hydroxide pentahydrate

    CAS:
    Tetramethylammonium hydroxide pentahydrate
    Formula:C4H12N·HO·5H2O
    Purity:97%
    Color and Shape: white solid
    Molecular weight:181.227g/mol

    Ref: 54-OR1002597

    25g
    32.00€
    100g
    43.00€
    25kg
    2,541.00€
    500g
    88.00€
    2.5kg
    296.00€
  • Tetramethylammonium hydroxide pentahydrate

    CAS:
    Formula:C4H13NO·5H2O
    Purity:97.5 - 102.5 % (anhydrous basis)
    Color and Shape:Colourless crystals or white crystalline powder
    Molecular weight:181.23

    Ref: 7W-GK9701

    5g
    22.00€
    25g
    40.00€
    100g
    114.00€
    250g
    214.00€
  • Tetramethylammonium Hydroxide Pentahydrate

    CAS:
    <p>Applications Tetramethylammonium Hydroxide Pentahydrate is a useful compound for preparing gamma-cesium lead iodide films for high-efficiency deep-red light-emitting devices.<br>References Yi, C., et al.: Nat. Commun., 11, 4736 (2020)<br></p>
    Formula:C4H23NO6
    Color and Shape:Neat
    Molecular weight:181.23

    Ref: TR-T076495

    5g
    137.00€
    10g
    219.00€
    25g
    430.00€
  • Tetramethylammonium hydroxide pentahydrate, min. 95%

    CAS:
    <p>Tetramethylammonium hydroxide pentahydrate, min. 95%</p>
    Formula:(CH3)4N(OH)H2O
    Purity:min. 95%
    Color and Shape:white solid
    Molecular weight:181.23

    Ref: 08-02-5065

    10g
    33.00€
    50g
    117.00€
  • Tetramethylammonium hydroxide pentahydrate

    CAS:
    <p>Tetramethylammonium hydroxide pentahydrate is a chemical compound with the formula (CH3)4NOH·5HO. It is a colorless liquid that is soluble in water and organic solvents. Tetramethylammonium hydroxide pentahydrate is used in chromatographic analysis to determine the composition of polymers in biological samples. It has been shown to be effective as an analytical method for determining the concentration of ammonium, zirconium oxide, and other metals. The rate constant for this reaction has been measured using glycol ether solutions. The optimum concentration of tetramethylammonium hydroxide pentahydrate for hydrogen bonding interactions was determined by X-ray diffraction data.</p>
    Formula:C4H13NO•5H2O
    Purity:Min. 95%
    Molecular weight:181.23 g/mol

    Ref: 3D-FT75544

    500g
    863.00€
  • Tetramethylammonium Hydroxide Pentahydrate extrapure, 98%

    CAS:
    Formula:(CH3)4N(OH)·5H2O
    Purity:min. 98%
    Color and Shape:White, Crystalline compound
    Molecular weight:181.23

    Ref: SR-29740

    5g
    Discontinued
    25g
    Discontinued
    100g
    Discontinued
    Discontinued product