Budesonide Impurity 31

Budesonide Impurity 11 Budesonide iMpurity F 11beta,16alpha,17,21-tetrahydroxypregn-4-ene-3,20-dione Budesonide Impurity 28 Prednisone 17, 21-Diacetate

Budesonide Impurity 21 Budesonide Impurity 30 Pregna-1,4-diene-3,20-dione, 21-(acetyloxy)-9,11-epoxy-16,17-dihydroxy-, (9β,11β,16α)- (11β,16α)-21-(Acetyloxy)-11,16,17-trihydroxypregna-1,4,14-triene-3,20-dione 21-Acetoxy-11-oxo-16α,17α-propylMethylenedioxpregna-1,4-diene-3,20-dione

IMp. B (EP): 16α,17-[(1RS)-Ethylidenebis(oxy)]-11β,21-dihydroxypregna-1,4-diene-3,20-dione 16alpha,17,21-trihydroxypregna-1,4,9(11)-triene-3,20-dione 21-acetate Budesonide Impurity 7 Budesonide iMpurity E Budesonide Impurity H

IMp. A (EP): 11β,16α,17,21-Tetrahydroxy-pregna-1,4-diene-3,20-dione (16-Hydroxy- prednisolone) 21-Dehydro Budesonide 16α,17-[(1RS)-Butylidenebis(oxy)]-11β-hydroxy-17-(hydroxyMethyl)-D-hoMoandrosta-1,4-diene-3,17a-dione (Mixture of DiastereoMers)