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 2-[1-(4-bromo-2-chlorophenoxy)ethyl]-5-(4-nitrophenyl)-1,3,4-oxadiazole is given. What is its corresponding molecular formula?
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C16H11BrClN3O4
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