21-Carboxy Dexamethasone

21-Carboxy Dexamethasone product with CAS: 84449-15-0 is also known as 2-((9R,10S,11S,13S,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-oxoacetic acid. This product can be used as a working standard or secondary reference standard. Additional internal validation as per respective FDA regulations/guidelines may require. 21-Carboxy Dexamethasone is generally used for Quality Control (QC), Quality Assurance (QA) during commercial production of Dexamethasone and its related formulations. Moreover, 2-((9R,10S,11S,13S,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-oxoacetic acid is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.