[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is the D-enantiomer of cysteinium. It has a role as a fundamental metabolite. It is a conjugate acid of a D-cysteine and a D-cysteine zwitterion. It is an enantiomer of a L-cysteinium."}, {"from": "gpt", "value": "[C][Branch1][#Branch2][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][NH3+1][S]"}]