[{"from": "human", "value": "Describe this molecule. [C@H1][Branch2][Ring1][N][C@H1][Branch2][Ring1][#Branch1][C][Branch2][Ring1][C][C@H1][Branch1][=C][C@@H1][Branch1][Branch1][C][Ring1][=Branch1][O][NH1+1][=C][Branch1][C][N][N][O][O][O][NH1+1][=C][Branch1][C][N][N]"}, {"from": "gpt", "value": "The molecule is a guanidinium ion obtained by protonation of both guanidino groups of streptidine; major species at pH 7.3. It is a conjugate acid of a streptidine."}]