You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (E)-3-(2,5-dimethyl-1-phenylpyrrol-3-yl)-1-[4-(2-oxo-2-pyrrolidin-1-ylethyl)piperazin-1-yl]prop-2-en-1-one by IUPAC nomenclature, provide its molecular formula.
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C25H32N4O2
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