You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2Z)-2-[(2-bromophenyl)methylidene]-4-methyl-3-oxo-1-benzofuran-6-yl] 2-thiophen-2-ylacetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H15BrO4S
assistant