[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch1][O][C][C][=Branch1][C][=N][C][=Branch1][C][=O][O][C][NH1+1][=C][Branch1][C][N][N]"}, {"from": "gpt", "value": "The molecule is a guanidinium ion obtained by protonation of iminoarginine; major species at pH 7.3."}]