You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5E)-5-[(3-bromo-5-chloro-2-hydroxyphenyl)methylidene]-3-prop-2-enylimidazolidine-2,4-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H10BrClN2O3
assistant