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 2-[(4-cyclopropyl-5-piperidin-1-yl-1,2,4-triazol-3-yl)sulfanyl]-N-(3,5-difluorophenyl)acetamide into molecular formula.
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C18H21F2N5OS
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