You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[4-[4-phenyl-2-(trifluoromethyl)-1H-imidazole-5-carbonyl]piperazin-1-yl]benzamide into molecular formula.
user
C22H20F3N5O2
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