You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 1-[3-bromo-5-(trifluoromethyl)phenyl]-N-(2-chloro-5-methoxyphenyl)sulfonylimidazole-4-carboxamide is given. What is its corresponding molecular formula?
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C18H12BrClF3N3O4S
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