You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5E)-3-ethyl-5-[[1-(4-fluorophenyl)pyrrol-2-yl]methylidene]-1,3-thiazolidine-2,4-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H13FN2O2S
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