Synonyms: trimethylalanine;2-(dimethylamino)-2-methylpropanoic acid;2-(Trimethylaminio)propanoic acid ion;Alaninebetaine;β-Homobetaine;(2-Carboxyethyl)trimethylammonium hydroxide, inner salt (7ci);2-Carboxy-N,N,N-trimethylethanaminium, hydroxide, inner salt;Ammonium, (2-carboxyethyl)trimethyl-, hydroxide, inner salt