英文别名Betamethasone impurity 3; Betamethasone Acid; Betamethasone Impurity 15; Betamethasone 17-acid; Betamethasone sodium phosphate impurity F; Betametasone Impurity 1; (8S,10S,11S,13S,14S,16S)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthrene-17-carboxylic acid; (8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid 
