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Name the molecular formula for the molecule established as 4-(3,5-dimethoxy-4-oxocyclohexa-2,5-dien-1-ylidene)-2-phenyl-6-(2,4,4-trimethylpentan-2-yl)cyclohexa-2,5-dien-1-one using the IUPAC nomenclature.
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C28H32O4
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