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-[(1S)-1-[5-[2-(1,3-benzothiazol-2-ylamino)-2-oxoethyl]sulfanyl-4-ethyl-1,2,4-triazol-3-yl]ethyl]thiophene-2-carboxamide is given. What is its corresponding molecular formula?
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C20H20N6O2S3
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