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-[[2-[(5-oxo-4-propyl-1H-1,2,4-triazol-3-yl)sulfanyl]acetyl]amino]-N-(2,4,6-trimethylphenyl)acetamide into molecular formula.
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C18H25N5O3S
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