You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-(4-fluorophenyl)-5-N-[4-(4-methylpiperidin-1-yl)butyl]-3,4-dihydropyrazole-3,5-dicarboxamide into its molecular formula.
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C21H30FN5O2
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