You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(2Z,5R)-2-[(Z)-(4-chlorophenyl)methylidenehydrazinylidene]-4-oxo-1,3-thiazolidin-5-yl]-N-(4-nitrophenyl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H14ClN5O4S
assistant