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What is the molecular formula of the molecule identified by 2-[(7R,8S,9R,10S,11S,13S,14S,16R,17R)-7,17-dibromo-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoacetaldehyde ?
user
C22H25Br2FO4
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