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Name the molecular formula for the molecule established as 3-[(4-bromo-3,5-dimethylpyrazol-1-yl)methyl]-N-[2-[(3-methoxybenzoyl)amino]ethyl]-1,2,4-oxadiazole-5-carboxamide using the IUPAC nomenclature.
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C19H21BrN6O4
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