You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-[4-(dimethylamino)phenyl]-N-[[5-(2,6-dioxopiperidin-3-yl)-6-oxo-4H-thieno[3,4-c]pyrrol-3-yl]methyl]-2-oxoacetamide by IUPAC nomenclature, provide its molecular formula.
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C22H22N4O5S
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