You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-amino-5-[4-(difluoromethoxy)-3-methylphenyl]-5-[3-(4-methoxybut-1-enyl)phenyl]-3-methylimidazol-4-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H25F2N3O3
assistant