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system
Name the molecular formula for the molecule established as (2R)-N-butyl-2-[[2-[4-chloro-N-(4-methylphenyl)sulfonyl-3-(trifluoromethyl)anilino]acetyl]-[(3-methoxyphenyl)methyl]amino]propanamide using the IUPAC nomenclature.
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C31H35ClF3N3O5S
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