Rosuvastatin (3R,5R)-Lactone

Rosuvastatin (3R,5R)-Lactone product with CAS: 1422954-11-7 is also known as Rosuvastatin-(5R)-lactone. This product can be used as a working standard or secondary reference standard. Additional internal validation as per respective FDA regulations/guidelines may require. Rosuvastatin (3R,5R)-Lactone is generally used for Quality Control (QC), Quality Assurance (QA) during commercial production of Rosuvastatin and its related formulations. Moreover, Rosuvastatin-(5R)-lactone is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.