[{"from": "human", "value": "Describe this molecule. [C][C][C@][C][C][=Branch2][Ring2][Ring2][=C][C@@][Branch1][S][C@H1][Ring1][=Branch1][NH1+1][Branch1][Branch1][C][C][Ring1][Branch1][C][C][=C][Ring1][N][C][=C][Branch1][Ring2][N][Ring1][N][C][=C][Branch1][Branch1][C][=C][Ring1][#Branch1][O][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is the indole alkaloid cation that is the conjugate acid of 16-hydroxytabersonine, arising from protonation of the tertiary amino function; major species at pH 7.3. It is a conjugate acid of a 16-hydroxytabersonine."}]