You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[2-amino-4-(3-methylphenyl)-1H-imidazol-5-yl]-3-methyl-1-(2-methylpropyl)benzimidazol-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H25N5O
assistant