You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-[(5E)-5-[(2,4-dichlorophenyl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]-N-(3,4-dimethylphenyl)acetamide .
user
C20H16Cl2N2O3S
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