[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][=C][C][S][S][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][O]"}, {"from": "gpt", "value": "The molecule is an S-substituted L-cysteine where the S-substituent is specified as (2-hydroxyethyl)sulfane. It has a role as a metabolite."}]