You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N'-methyl-3-phenyl-N-[3-(4-pyrimidin-2-ylpiperazin-1-yl)propyl]pyrrolidine-1-carboximidamide by IUPAC nomenclature, provide its molecular formula.
user
C23H33N7
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