You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named methyl (1R,4R,5S,6R)-6-(bromomethyl)-1,6-dimethylbicyclo[2.1.1]hexane-5-carboxylate by IUPAC nomenclature, provide its molecular formula.
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C11H17BrO2
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