英文同义词: | Betamethasone EP Impurity F;9-Desfluoro-11-deshydroxy-11,12-dehydro Betamethasone;Betamethasone Impurity 6(Betamethasone EP Impurity F);Pregna-1,4,11-triene-3,20-dione, 17,21-dihydroxy-16-methyl-, (16β)- (9CI);17,21-Dihydroxy-16β-methylpregna-1,4,11-triene-3,20-dione |