(22R)-Budesonide ((22R)-BUD) is the (22R)-enantiomer of Budesonide. (22R)-Budesonide is a non-halogenated glucocorticoid with high topical anti-inflammatory activity.

Physicochemical Properties

Molecular Formula	C25H34O6
Molecular Weight	430.53
CAS #	51372-29-3
SMILES	CCCC1OC2(C(CO)=O)C(CC3C2(C)CC(O)C2C3CCC3C2(C)C=CC(=O)C=3)O1
Synonyms	(22R)-Budesonide; (22R)-BUD
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References

[1]. Simultaneous quantification of 22R and 22S epimers of budesonide in human plasma by ultra-high-performance liquid chromatography-tandem mass spectrometry: application in a stereoselective pharmacokinetic study. J Chromatogr B Analyt Technol Biomed Life Sci. 2013 Mar 15:921-922:27-34.

Solubility Data

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.3227 mL	11.6136 mL	23.2272 mL
	5 mM	0.4645 mL	2.3227 mL	4.6454 mL
	10 mM	0.2323 mL	1.1614 mL	2.3227 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.