#tetramethylammonium

Tetramethylammonium

Polyatomic ion (N(CH₃)₄, charge +1)

Tetramethylammonium (TMA) is the simplest quaternary ammonium cation. It has the chemical formula [Me4N]+ and consists of four methyl groups attached to a central nitrogen atom. The cation is isoelectronic with neopentane. It is positively-charged and can only be isolated in association with a counter-ion. Common salts include tetramethylammonium chloride and tetramethylammonium hydroxide. Tetramethylammonium salts are used in chemical synthesis and in pharmacological research. It confers no color to its salts.

Sun 15th

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