You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[3-bromo-4-[diethoxyphosphoryl(difluoro)methyl]phenyl]ethyl]-N-ethyl-3-phenylpropanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H31BrF2NO4P
assistant