You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name N-[2-[5-[(2-chlorophenyl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]ethyl]-1-methylsulfonylpiperidine-4-carboxamide ?
user
C19H22ClN3O5S2
assistant