Standards; Steroids; Pharmaceutical/API Drug Impurities/Metabolites;
Budesonide (B689490) epimer R. Budesonide 22R epimer is more active than 22S epimer. Used as an antiinflammatory agent.
Ryrfeldt., A., et a.: J. Steroid Biochem., 10, 317 (1979), Roth, G., et al.: J. Pharm. Sci., 69, 766 (1980), Clissold, S.P., et al.: Drugs, 28, 485 (1984),