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-bromophenyl)-[4-[3-(3,4-dimethylphenyl)-1H-pyrazole-5-carbonyl]piperazin-1-yl]methanone is given. What is its corresponding molecular formula?
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C23H23BrN4O2
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