You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (5E)-5-[[1-(4-hydroxyphenyl)pyrrol-2-yl]methylidene]-1-pyridin-4-yl-1,3-diazinane-2,4,6-trione by IUPAC nomenclature, provide its molecular formula.
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C20H14N4O4
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