Trimethylanilinium hydroxide is the most common reagent in this type of organic ammonium salts.Other reagents used are tetramethylammonium hydroxide and m-(trifluoromethylphenyl)trimethylammonium hydroxide. the acetate salt and fluoride salt have also been reported.
ChEBI: A quaternary ammonium salt that is the hydroxide of trimethylphenylammonium. It is a derivatisation agent used in gas chromatography/mass spectrometry applications.
Trimethylphenylammonium hydroxide (TMAH) is a methylating reagent.