You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-(tert-butylamino)-1-oxopropan-2-yl]-N-[(3-chlorophenyl)methyl]-4-(2-fluoro-N-methylsulfonylanilino)butanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H33ClFN3O4S
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