英文别名21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene-3,20-dione; 2-[(4aR,5S,6aS,6bS,9aR,10aS,10bS)-5-Hydroxy-4a,6a-dimethyl-2-oxo-8-propyl-2,4a,4b,5,6,6a,9a,10,10a,10b,11,12-dodecahydro-6bH-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-6b-yl]-2-oxoethyl acetate; Budesonide Impurity 11; (11β,16α)-21-(Acetyloxy)-16,17-[butylidenebis(oxy)]-11-hydroxy-pregna-1,4-diene-3,20-dione; 21-(Acetoxy)-16α,17α-(butylidenedioxy)-11β-hydroxypregna-1,4diene-3,20-dione; 16α,17-[(1RS)-butylidenebis(oxy)]-11β,21-dihydroxypregna-1,4-diene-3,20-dione-21-acetate; Budesonide EP Impurity K; Budesonide Impurity 11(Budesonide EP Impurity K); Budesonide Impurity A (21-acetate of Budes.) 
