21-Dehydro Dexamethasone Hydrate


21-Dehydro Dexamethasone Hydrate is a Impurity of Dexamethasone with CAS Registry No: 2964-79-6
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CAT No. CS-T-51706
Category Impurities
Parent API Dexamethasone
CAS 2964-79-6
Mol. Weight 390.45 g/mol
Mol. Formula C22H27FO5
View COA View MSDS
More info about 21-Dehydro Dexamethasone Hydrate
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Synonyms (11β,16a)-9-Fluoro-11,17-dihydroxy-16-methyl-3,20-dioxopregna-1,4-dien-21-al; 9-Fluoro-11β,17-dihydroxy-16a-methyl-3,20-dioxopregna-1,4-dien-21-al; 2-((8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoacetaldehyde
Storage Conditions For long term store at -20�C
Purity (%) >98%
Melting Point (℃)169-174 
Solubility DMSO, Methanol
Appearance Pale Yellow Solid
Application Notes 21-Dehydro Dexamethasone is an impurity of Dexamethasone , a glucocorticoid anti-inflammatory agent.
References Mason, H., et al.: J. Biol. Chem., 124, 475 (1938); Juenge, E., et al.: J. Pharm. Sci., 68, 551 (1979); Suzuki, T., et al.: Biol. Pharm. Bull., 22, 816 (1999);
Pubchem Id 129627261
Smiles CC1CC2C3CCC4=CC(=O)C=CC4(C3(C(CC2(C1(C(=O)C=O)O)C)O)F)C.O
The balance used are calibrated with weights Traceable to National Standards NIST for accuracy

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