You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2-nitrophenyl)-2-[(2Z)-4-oxo-2-(1-phenylethylidenehydrazinylidene)-1,3-thiazolidin-5-yl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H17N5O4S
assistant