You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[(2S)-1-[[(2S)-butan-2-yl]amino]-1-oxopropan-2-yl]-N-[(2,6-dichlorophenyl)methyl]-4-(2-fluoro-N-methylsulfonylanilino)butanamide by IUPAC nomenclature, provide its molecular formula.
user
C25H32Cl2FN3O4S
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