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Name the molecular formula for the molecule established as 2-[(4aR,8aR)-4a-hydroxy-1,3,4,5,6,7,8,8a-octahydroisoquinolin-2-yl]-N-(4-chloro-2-fluorophenyl)acetamide using the IUPAC nomenclature.
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C17H22ClFN2O2
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