[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an alpha-amino-acid cation. It is a conjugate acid of an argininium(1+)."}, {"from": "gpt", "value": "[C][Branch1][O][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][NH3+1][C][NH1+1][=C][Branch1][C][N][N]"}]