You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[1-(2-bromophenyl)pyrrolidin-3-yl]-2-methyl-3-[(1-methylpyrazol-4-yl)methyl]guanidine The above is the IUPAC name of a molecule. Write its molecular formula.
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C17H23BrN6
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