You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named [(E)-1-[4-[3-fluoro-5-(oxan-4-yl)phenyl]sulfanylphenyl]ethylideneamino] acetate is given. What is its corresponding molecular formula?
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C21H22FNO3S
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