You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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[2-(2-bicyclo[2.2.1]heptanyl)-1-[4-bromo-2-(2-methoxyethyl)pyrazol-3-yl]ethyl]hydrazine is the IUPAC name of a molecule. Please give its molecular formula.
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C15H25BrN4O
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