You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5E)-5-[[5-[(6-bromonaphthalen-2-yl)oxymethyl]furan-2-yl]methylidene]-3-(2-ethylphenyl)-2-sulfanylideneimidazolidin-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H21BrN2O3S
assistant