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Name the molecular formula for the molecule established as ethyl (4S)-6-[[4-(2,4-dimethylphenyl)piperazin-1-yl]methyl]-4-(4-methylphenyl)-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate using the IUPAC nomenclature.
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C27H34N4O3
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