You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 5-[[4-[[4-(2-ethoxy-2-oxoethoxy)-3-nitrophenyl]methylidene]-2,5-dioxoimidazolidin-1-yl]methyl]furan-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H19N3O10
assistant