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Name the molecular formula for the molecule established as 8-(4-bromo-7-fluoro-3-methoxycyclohepta-1,3-dien-1-yl)-7-chloro-5-(trifluoromethyl)imidazo[1,2-a]pyridine using the IUPAC nomenclature.
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C16H12BrClF4N2O
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