You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[4-[bis(4-fluorophenyl)methylidene]piperidin-1-yl]ethyl-methylamino]-1H-pyrimidin-6-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H26F2N4O
assistant