[{"from": "human", "value": "Provide a description of this molecule. [C][=Branch1][C][=O][Branch2][Ring1][#Branch1][C][Branch1][S][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][Branch1][C][F][F][Branch1][C][F][F][O]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid that is perfluorinated butyric acid. It has a role as a chromatographic reagent, a xenobiotic and an environmental contaminant. It is functionally related to a butyric acid."}]