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 N-[(5-chlorothiophen-2-yl)methyl]-N-ethyl-1-methyl-2-oxopyridine-4-carboxamide is given. What is its corresponding molecular formula?
user
C14H15ClN2O2S
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