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 (2S)-2-[[(2S)-2-acetamido-3-(4-fluoro-2-methylphenyl)propanoyl]amino]-6-imino-N-[(4-methylphenyl)methyl]-5-oxohexanamide is given. What is its corresponding molecular formula?
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C26H31FN4O4
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