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 2-[[5-[(2-methyl-1,3-thiazol-4-yl)methyl]-1,3,4-oxadiazol-2-yl]sulfanyl]-1-[4-(thiophene-2-carbonyl)piperazin-1-yl]ethanone is given. What is its corresponding molecular formula?
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C18H19N5O3S3
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