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Name the molecular formula for the molecule established as 6-bromo-2-[(2S)-butan-2-yl]-3-[[2,3-dibromo-4-[(2-fluorophenyl)methoxy]-5-methoxyphenyl]methylideneamino]quinazolin-4-one using the IUPAC nomenclature.
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C27H23Br3FN3O3
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