You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 3-benzyl-N-[(4-cyanophenyl)methyl]-4-methyl-2-oxo-1,3-thiazole-5-carboxamide is given. What is its corresponding molecular formula?
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C20H17N3O2S
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