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system
Name the molecular formula for the molecule established as (5R)-2-(4-fluoroanilino)-N-(4-methyl-3-nitrophenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide using the IUPAC nomenclature.
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C21H17FN6O5
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