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system
Name the molecular formula for the molecule established as N-[(2S)-1-(butylamino)-1-oxopropan-2-yl]-4-(3-chloro-4-methoxy-N-methylsulfonylanilino)-N-[(2,4-dichlorophenyl)methyl]butanamide using the IUPAC nomenclature.
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C26H34Cl3N3O5S
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