You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[5-(1-benzofuran-5-yl)furan-2-yl]-N-[(E)-3-phenylbut-2-en-2-yl]ethanimine is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H21NO2
assistant