You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(2Z)-3-methyl-2-[(E)-(3-nitrophenyl)methylidenehydrazinylidene]-4-oxo-1,3-thiazolidin-5-yl]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H12N4O5S
assistant