You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[3-[4-(2,4-difluorophenyl)piperidin-1-yl]propyl]-5-ethyl-5-(4-fluorophenyl)-2-methylimidazol-4-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H30F3N3O
assistant