英文别名Betamethasone EP Impurity J; 9-Desfluoro-11-deoxy Betamethasone; (8R,9S,10R,13S,14S,16S,17R)-17-hydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one; 17,21-Dihydroxy-16beta-methylpregna-1,4-diene-3,20-dione; Pregna-1,4-diene-3,20-dione, 17,21-dihydroxy-16-methyl-, (16beta)-; 16β-Methyl-17α,21-Dihydroxypregna-1,4-diene-3,20-dione 
