You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-cyclobutyl-6-[(E)-2-[1-[(2-fluorophenyl)methyl]pyrazol-4-yl]ethenyl]-5-nitro-1-(2-phenylethyl)pyrimidine-2,4-dione by IUPAC nomenclature, provide its molecular formula.
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C28H26FN5O4
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