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system
Name the molecular formula for the molecule established as (8S,10S,13R,14S,17R)-17-(2-fluoroethyl)-10,13-dimethyl-2,3,6,7,8,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthrene using the IUPAC nomenclature.
user
C21H31F
assistant