You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (2R)-2-[(4-amino-6-oxo-1H-pyrimidin-2-yl)sulfanyl]-N-(5-propan-2-yl-1,3,4-thiadiazol-2-yl)butanamide into molecular formula.
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C13H18N6O2S2
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