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-benzyl-3-[5-(dimethylsulfamoyl)-1-ethylbenzimidazol-2-yl]-N-ethylpropanamide is given. What is its corresponding molecular formula?
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C23H30N4O3S
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