You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(4-chlorophenoxy)-N-[2-[5-[(4-methoxyphenyl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]ethyl]-2-methylpropanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H23ClN2O5S
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