You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[3-fluoro-4-[2-[5-[(4-methylpiperazin-1-yl)methyl]pyridin-2-yl]thieno[3,2-b]pyridin-7-yl]oxyphenyl]formamide into molecular formula.
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C25H24FN5O2S
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