You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 3-[5-[(1-methylpyrrol-2-yl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]benzoic acid .
user
C16H12N2O3S2
assistant