You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule methyl (2S)-4-methylsulfanyl-2-[[2-phenyl-4-(pyridin-2-ylamino)-3-(sulfonylmethyl)benzoyl]amino]butanoate into molecular formula.
user
C25H25N3O5S2
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