Tetramethylammonium hydroxide pentahydrate

  • CAT Number: M064925
  • CAS Number: 10424-65-4
  • Molecular Formula: C4H23NO6
  • Molecular Weight: 181.229
  • Purity: ≥95%
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Tetramethylammonium hydroxide pentahydrate (TMAH) is a quaternary ammonium salt with strong basic properties, commonly used in various chemical and industrial applications. In its pentahydrate form, TMAH is highly soluble in water and is often utilized as a developer in photolithography processes, especially in the manufacturing of semiconductors and printed circuit boards. It is also employed as a reagent in organic synthesis, particularly for deprotonation and nucleophilic substitution reactions. Due to its strong alkalinity, TMAH must be handled with care, as it can be corrosive and hazardous.


Catalog Number M064925
CAS Number 10424-65-4
Molecular Formula C4H23NO6
Purity ≥95%
Storage Store at -20°C
IUPAC Name tetramethylazanium;hydroxide;pentahydrate
InChI InChI=1S/C4H12N.6H2O/c1-5(2,3)4;;;;;;/h1-4H3;6*1H2/q+1;;;;;;/p-1
InChIKey MYXKPFMQWULLOH-UHFFFAOYSA-M
SMILES C[N+](C)(C)C.O.O.O.O.O.[OH-]

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