Trimethylglycine

Common card · No. 284063

Trimethylglycine is an amino acid derivative with the formula (CH3)3N+CH2CO−2. A colorless, water-soluble solid, it occurs in plants. Trimethylglycine is a zwitterion: the molecule contains both a quaternary ammonium group and a carboxylate group. Trimethylglycine was the first betaine discovered; originally it was simply called betaine because it was discovered in sugar beets (Beta vulgaris subsp. vulgaris). Several other betaines are now known.

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