[{"from": "human", "value": "Provide a description of this molecule. [C][N][C][=Branch1][Ring1][=N][C][N][C][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is an amino acid zwitterion obtained from N(omega),N'(omega)-dimethyl-L-arginine by transfer of a proton from the carboxylic acid group to the alpha-amino group. It is a tautomer of a N(omega),N'(omega)-dimethyl-L-arginine."}]