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system
Name the molecular formula for the molecule established as 2-[4-[(3Z)-2-[4-(dimethylamino)phenyl]-3-[hydroxy-(2-methoxyphenyl)methylidene]-4,5-dioxopyrrolidin-1-yl]phenyl]acetic acid using the IUPAC nomenclature.
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C28H26N2O6
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