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system
Name the molecular formula for the molecule established as (2S,3R,4R,5S,6R)-2-[4-chloro-3-[(4-ethoxyphenyl)-difluoromethyl]phenyl]-6-(hydroxymethyl)oxane-3,4,5-triol using the IUPAC nomenclature.
user
C21H23ClF2O6
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