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What is the molecular formula of the molecule (6Z)-6-[[1-(5-chloro-2-methoxyphenyl)-2,5-dimethylpyrrol-3-yl]methylidene]-5-imino-2-methyl-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one ?
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C20H18ClN5O2S
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