[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][Branch1][=C][N][Ring1][=Branch1][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][NH3+1]"}, {"from": "gpt", "value": "The molecule is the D-enantiomer of tryptophanium. It has a role as a bacterial metabolite. It is a conjugate acid of a D-tryptophan. It is an enantiomer of a L-tryptophanium."}]