You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-(5-chloro-2-methoxyphenyl)-2-[[4-ethyl-5-[(4-methoxyanilino)methyl]-1,2,4-triazol-3-yl]sulfanyl]acetamide into its molecular formula.
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C21H24ClN5O3S
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