[{"from": "human", "value": "Please give me some details about this molecule. [C][N+1][Branch1][C][C][Branch1][C][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a quaternary ammonium ion in which the substituents on nitrogen are methyl (three) and carboxymethyl. It has a role as a fundamental metabolite. It is a conjugate acid of a glycine betaine."}]