You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-[2-(3,4-dimethoxyphenyl)ethyl-methylcarbamoyl]phenyl]-N-(2-ethylhexyl)pyrimidine-5-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H40N4O4
assistant