[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=Branch1][S][=C][Branch1][N][C][=C][Ring1][=Branch1][C][C][C][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid that is 3-phenylpropionic acid substituted by hydroxy groups at positions 3 and 4. Also known as dihydrocaffeic acid, it is a metabolite of caffeic acid and exhibits antioxidant activity. It has a role as an antioxidant and a human xenobiotic metabolite. It is functionally related to a 3-phenylpropionic acid. It is a conjugate acid of a 3-(3,4-dihydroxyphenyl)propanoate."}]