You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[(3aS,6aR)-3-(2-chlorophenyl)-5,5-dioxo-3a,4,6,6a-tetrahydrothieno[3,4-d][1,3]thiazol-2-ylidene]-2-(4-chlorophenoxy)acetamide into its molecular formula.
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C19H16Cl2N2O4S2
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