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system
Provide the molecular formula for the IUPAC named substance [(2R)-2-[5-[2-chloro-6-[methyl(methylsulfonyl)amino]pyridin-4-yl]-1,3,4-oxadiazol-2-yl]-1-phenylpropan-2-yl]carbamic acid .
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C19H20ClN5O5S
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