3′-S Sofosbuvir isomer

3′-S Sofosbuvir isomer product with CAS: NA is also known as 3′-S Sofosbuvir isomer. This product can be used as a working standard or secondary reference standard. Additional internal validation as per respective FDA regulations/guidelines may require. It is used in Sofosbuvir impurity profiling as per limits and threshold values specified by respective drug legislation, FDA, and pharmacopoeial guidelines. Moreover, 3′-S Sofosbuvir isomer is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.