You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N'-(2,2-difluoroacetyl)-3-fluoro-4-[(4-fluoro-N-methylsulfanylanilino)methyl]benzohydrazide by IUPAC nomenclature, provide its molecular formula.
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C17H15F4N3O2S
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