You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-[[5-[acetyl(cyclopropyl)amino]-1,3,4-thiadiazol-2-yl]sulfanyl]-N-[4-(3,4-dimethylphenyl)-1,3-thiazol-2-yl]acetamide by IUPAC nomenclature, provide its molecular formula.
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C20H21N5O2S3
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