[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][Branch1][=Branch1][N][C][=NH1+1][Ring1][Branch1][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][NH3+1]"}, {"from": "gpt", "value": "The molecule is the D-enantiomer of histidinium(2+). It has a role as a Saccharomyces cerevisiae metabolite. It is a conjugate acid of a D-histidinium(1+). It is an enantiomer of a L-histidinium(2+)."}]