You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (5Z)-3-(4-chlorophenyl)-5-[(5-phenylsulfanylfuran-2-yl)methylidene]-1,3-thiazolidine-2,4-dione .
user
C20H12ClNO3S2
assistant