[{"from": "human", "value": "Please give me some details about this molecule. [C][=C][Branch1][=Branch1][N][C][=N][Ring1][Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C][C][C][NH3+1]"}, {"from": "gpt", "value": "The molecule is a zwitterion arising from transfer of a proton from the carboxy to the amino group of L-homocarnosine; major species at pH 7.3. It is a N-acyl-L-alpha-amino acid anion and a dipeptide zwitterion. It is a tautomer of a L-homocarnosine."}]