You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[(6-bromo-2-chloro-3,4-difluoroanilino)methylidene]-2,2-dimethyl-1,3-dioxane-4,6-dione by IUPAC nomenclature, provide its molecular formula.
user
C13H9BrClF2NO4
assistant