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-(3-ethylsulfonylphenyl)-4-(4-methyl-1,3-thiazol-2-yl)-1,4-diazepane-1-carboxamide is given. What is its corresponding molecular formula?
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C18H24N4O3S2
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