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-[[5-[1-(2-chlorophenoxy)ethyl]-4-methyl-1,2,4-triazol-3-yl]sulfanyl]-N-(2-methylphenyl)acetamide into molecular formula.
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C20H21ClN4O2S
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