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system
Name the molecular formula for the molecule established as N-[5-[5-[(4-chloro-1H-isoindol-5-yl)amino]-1,3,4-thiadiazol-2-yl]pyridin-3-yl]-1-methylpyrazole-4-carboxamide using the IUPAC nomenclature.
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C20H15ClN8OS
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