[{"from": "human", "value": "Provide a description of this molecule. [C][C@H1][Branch2][Ring2][O][C@][C][C][=Branch2][Ring1][#C][=C][C@@][Branch1][S][C@H1][Ring1][=Branch1][NH1+1][Branch1][Branch1][C][C][Ring1][Branch1][C][C][=C][Ring1][N][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][S][C][=Branch1][C][=O][O][C][O][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is an ammonium ion resulting from the protonation of the tertiary amino group of (-)-(R)-19-O-acetyltabersonine. The major species at pH 7.3. It is an indole alkaloid cation and an ammonium ion derivative."}]