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What is the molecular formula of the compound with this IUPAC name 3-[2-(2,5-dimethyl-1-prop-2-enylpyrrol-3-yl)-2-oxoethyl]sulfanyl-N,N-diethyl-[1,2,4]triazolo[4,3-a]pyridine-6-sulfonamide ?
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C21H27N5O3S2
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