You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4-methylpiperazin-1-yl)-[3-[6-[4-(trifluoromethoxy)anilino]pyrimidin-4-yl]phenyl]methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H22F3N5O2
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