You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N-[(2S)-butan-2-yl]-2-[[2-[4-chloro-N-(4-methylphenyl)sulfonyl-3-(trifluoromethyl)anilino]acetyl]amino]benzamide is given. What is its corresponding molecular formula?
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C27H27ClF3N3O4S
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