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system
Name the molecular formula for the molecule established as 1-(4-bromo-2,3-dimethylphenyl)-5-[(1,3-dimethyl-2-oxobenzimidazol-5-yl)iminomethyl]-6-hydroxypyrimidine-2,4-dione using the IUPAC nomenclature.
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C22H20BrN5O4
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