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 (1S,2S,3R,4R)-3-[(5-ethylsulfanyl-1,3,4-thiadiazol-2-yl)carbamoyl]bicyclo[2.2.1]heptane-2-carboxylate is given. What is its corresponding molecular formula?
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C13H16N3O3S2-
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