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 N-[[3-chloro-4-[(2-chloro-4-fluorophenyl)methoxy]-5-ethoxyphenyl]methyl]-3-(1-methyltetrazol-5-yl)sulfanylpropan-1-amine is given. What is its corresponding molecular formula?
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C21H24Cl2FN5O2S
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