IMPURITIES

21-Acetoxy-11β-hydroxypregna-1,4,16-triene-3,20-dione is a Impurity of Budesonide with CAS Registry No: 3044-42-6
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CAT No. CS-O-11817
Category Impurities
Parent API Budesonide
CAS 3044-42-6
Mol. Weight 384.47 g/mol
Mol. Formula C23H28O5

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More info about 21-Acetoxy-11β-hydroxypregna-1,4,16-triene-3,20-dione
Synonyms CS-DV-01389; 2-((8S,9S,10R,11S,13S,14S)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate; 11β,21-Dihydroxypregna-1,4,16-triene-3,20-dione 21-Acetate; (11β)-21-(Acetyloxy)-11-hydroxypregna-1,4,16-triene-3,20-dione; Budesonide 1,4,16-Triene Impurity
Purity (%) >98%
Solubility DCM, Ethyl Acetate
Appearance Brown Solid
Application Notes 21-Acetoxy-11β-hydroxypregna-1,4,16-triene-3,20-dione is an intermediate in the synthesis of Budesonide related derivatives.
References Ko, D-H., et al.: Med. Chem. Res., 7, 313 (1997);
Pubchem Id 102365
Smiles CC(=O)OCC(=O)C1=CCC2C1(CC(C3C2CCC4=CC(=O)C=CC34C)O)C
The balance used are calibrated with weights Traceable to National Standards NIST for accuracy



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