[{"from": "human", "value": "Provide a description of this molecule. [C][=Branch2][Ring1][Branch1][=C][Branch1][P][C][=Branch1][=N][=C][Branch1][=Branch2][C][=Branch1][Branch1][=C][Ring1][=Branch1][F][F][F][F][F][C][=Branch1][C][=O][Cl]"}, {"from": "gpt", "value": "The molecule is the acid chloride of pentafluorobenzoic acid. It is a sensitive derivatising reagent for the analysis of amines, amides and phenols by electron capture gas chromatography. It has a role as a chromatographic reagent. It is an acyl chloride and a perfluorinated compound. It is functionally related to a pentafluorobenzoic acid."}]