You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-(2-methoxyethyl)-3-[5-(4-propylthiadiazol-5-yl)-1,3,4-thiadiazol-2-yl]propan-1-amine into molecular formula.
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C13H21N5OS2
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