You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[(4-butyl-5-oxo-1H-1,2,4-triazol-3-yl)sulfanyl]-N-(2-methylcyclohexyl)acetamide into its molecular formula.
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C15H26N4O2S
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