[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH2+1][C@@H1][Branch1][#Branch2][C][C][C][NH1+1][=C][Branch1][C][N][N][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a D-alpha-amino acid zwitterion that is D-octopine in which both carboxy groups are anionic and the secondary amino and guanidine imino functions are protonated. It is a conjugate acid of a D-octopine(1-). It is a tautomer of a D-octopine."}]