You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 3-(1-ethyl-5-morpholin-4-ylsulfonylbenzimidazol-2-yl)-N-(5-methyl-1,3-thiazol-2-yl)propanamide into molecular formula.
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C20H25N5O4S2
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