You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-[1-[4-(2,5-dimethylphenoxy)butyl]benzimidazol-2-yl]ethyl]-2-methylbenzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C29H33N3O2
assistant