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-[2-[2-[2-(methylideneamino)ethoxy]ethoxy]ethyl]-4-[1-(pyridin-2-yldisulfanyl)ethyl]benzamide is given. What is its corresponding molecular formula?
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C21H27N3O3S2
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