Clobetasol Propionate EP Impurity B

Clobetasol Propionate EP Impurity B product with CAS: 1356190-17-4 is also known as 21-Chloro-9-fluoro-11β-hydroxy-16-methylpregna-1,4,16-triene-3,20-dione. This product can be used as a working standard or secondary reference standard. Additional internal validation as per respective FDA regulations/guidelines may require. Clobetasol Propionate EP Impurity B is generally used for Quality Control (QC), Quality Assurance (QA) during commercial production of Clobetasol Propionate and its related formulations. Moreover, 21-Chloro-9-fluoro-11β-hydroxy-16-methylpregna-1,4,16-triene-3,20-dione is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.