(11β,16β)-9-Fluoro-17-butanoyloxy-16-methyl-11,21-dihydroxypregna-1,4-diene-3,20-dione;Betamethasone17-butyrate;Pregna-1,4-diene-3,20-dione,9-fluoro-11,21-dihydroxy-16-methyl-17-(1-oxobutoxy)-,(11β,16β)-;BetamethasoneImpurity58;BetamethasoneButyrate
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