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system
Name the molecular formula for the molecule established as N-ethyl-N-[2-[5-[(Z)-2-[(2-fluoro-4-methylphenyl)methylamino]-1-(methylamino)ethenyl]-3-hydroxy-2-methyl-4-oxopyridin-1-yl]ethyl]formamide using the IUPAC nomenclature.
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C22H29FN4O3
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