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system
Name the molecular formula for the molecule established as N-[2-(2,6-dichloroanilino)-2-oxoethyl]-N-ethyl-2-(3-propyl-5-sulfanylidene-1H-1,2,4-triazol-4-yl)acetamide using the IUPAC nomenclature.
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C17H21Cl2N5O2S
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