You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4Z)-2-(2-fluorophenyl)-4-[(3-iodo-4,5-dimethoxyphenyl)methylidene]-1,3-oxazol-5-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H13FINO4
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