You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[(5E)-5-[(2-methylphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetic acid into molecular formula.
user
C13H11NO3S2
assistant