You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [2-oxo-2-[4-(phenylcarbamoyl)piperazin-1-yl]ethyl] (2S)-2-(benzenesulfonamido)propanoate by IUPAC nomenclature, provide its molecular formula.
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C22H26N4O6S
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