Budesonide Impurities

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Parent Drug Name Name of Impurity Catalogue No.
Budesonide Androstandionic Impurity VE007477View CAS 85234-64-6
Budesonide Budesonide (22R)-Isomer VE007464View CAS 51372-29-3
Budesonide Budesonide (22S)-Isomer VE007465View CAS 51372-28-2
Budesonide Budesonide 1, 4, 14-Triene Triol Impurity VE007466View CAS 131918-72-4
Budesonide Budesonide 17, 21-Diacetyloxy Impurity VL34015View CAS 17652-24-3
Budesonide Budesonide 17-Carboxylic Acid Impurity VL34013View CAS 192057-49-1
Budesonide Budesonide 21-Butyrate Impurity VL34014View CAS 2408495-96-3
Budesonide Budesonide 21-Butyrate Impurity VE007467View
Budesonide Budesonide 6-alpha-Hydroxy Impurity VE007468View CAS 577777-51-6
Budesonide Budesonide 6-beta-Hydroxy Impurity VE007469View CAS 88411-77-2
Budesonide/prednisolone/Desonide Budesonide EP Impurity A VL34001View CAS 13951-70-7
Budesonide Budesonide EP Impurity B VL34002View CAS 1040085-98-0
Budesonide Budesonide EP Impurity C VL34003View CAS 1040085-99-1
Budesonide Budesonide EP Impurity D VL34008View CAS 85234-63-5
Budesonide Budesonide EP Impurity E VL34004View CAS 131918-64-4
Budesonide Budesonide EP Impurity F VL34005View CAS 638-94-8
Budesonide Budesonide EP Impurity G VL34009View CAS 137174-25-5
Budesonide Budesonide EP Impurity H VL34010View CAS 313474-58-7
Budesonide Budesonide EP Impurity I VL34006View CAS 113930-13-5
Budesonide Budesonide EP Impurity J VL34011View CAS 313474-59-8
Budesonide Budesonide EP Impurity K VL34012View CAS 51333-05-2
Budesonide Budesonide EP Impurity L VL34007View CAS 216453-74-6
Budesonide Budesonide Impurity 6 VE007480View CAS 77017-20-0
Budesonide Budesonide Oxoacetic Acid VE007474View
Budesonide Budesonide Propionaldehyde Impurity VE007478View CAS 68293-09-4
Budesonide Budesonide Related Compound 4 VE007473View CAS 111088-90-5
Budesonide Budesonide Sulfate Sodium Impurity VE007475View
Budesonide 1, 4-Androstadien-11-beta-16-alpha-Diol-3, 17-Dione VE007976View CAS 910299-74-0
Budesonide 16α-Hydroxycortisol Impurity VE007479View CAS 1171-81-9
Budesonide 21-Acetoxy-11beta -hydroxypregna-1, 4, 16-triene-3, 20-dione VE006999View CAS 3044-42-6
Budesonide 22R-6β-Hydroxy Budesonide VE007471View CAS 93861-52-0
Budesonide 22S-6β-Hydroxy Budesonide VE007470View CAS 93861-51-9
Budesonide 23-Hydroxybudesonide VE007472View CAS 109423-03-2
Budesonide 24-Hydroxy Budesonide VE007476View

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1040085-98-0: Budesonide EP Impurity B

1040085-98-0: Budesonide EP Impurity B
Catalogue No.




Molecular Formula


Molecular Weight

402.48 g/mol

Parent drug



16α, 17-[(1RS)-Ethylidenebis(oxy)]-11β, 21-dihydroxypregna-1, 4-diene-3, 20-dione


Budesonide Acetylaldehyde Acetal


Sci-Hub, Direct separation, identification and quantification of epimers 22R and 22S of budesonide by capillary gas chromatography on a short analytical column with Rtx®-5 stationary phase, 10.1016/j.jchromb.2003.12.038. (2021). Retrieved December 29, 2021, from Sci-hub.ee website: https://sci-hub.ee/10.1016/j.jchromb.2003.12.038




Budesonide EP Impurity B

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