You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5E)-5-[[3-chloro-5-ethoxy-4-(naphthalen-1-ylmethoxy)phenyl]methylidene]-3-(4-chlorophenyl)imidazolidine-2,4-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H22Cl2N2O4
assistant