You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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ethyl 4-amino-2-[(5-thiophen-2-yl-1,2,4-oxadiazol-3-yl)methylsulfanyl]pyrimidine-5-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
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C14H13N5O3S2
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