You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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1-[(3-bromophenyl)methyl]-3-(3,5-dichlorophenyl)-3-(2-methoxyethyl)-1-[(2-methylpyrazol-3-yl)methyl]urea is the IUPAC name of a molecule. Please give its molecular formula.
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C22H23BrCl2N4O2
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