You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[3-methyl-1-oxo-1-[4-[3-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl]butan-2-yl]-4-nitrobenzamide into its molecular formula.
user
C22H24F3N5O4
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