You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The appearance of toxic decomposition products serves as warning of the occurrence of thermal decompositon and detection of a sharp acrid odor warns of the presence of these products. fluorocarbons/ The molecule has Odorless chlorotetrafluoroethane/.
user
FC(F)C(F)(F)Cl
assistant