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system
Name the molecular formula for the molecule established as (Z)-7-[(1R,2R,3S,4S)-3-[2-(hexylsulfonylamino)ethyl]-7-oxabicyclo[2.2.1]heptan-2-yl]hept-5-enoic acid using the IUPAC nomenclature.
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C21H37NO5S
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