Rosuvastatin tert-Butyl Ester

Rosuvastatin tert-Butyl Ester product with CAS: 1283766-30-2 is also known as tert-Butyl-7-[4-(4-fluorophenyl)-6-isopropyl-2-mesylaminopyrimidin-5-yl]-(3R,5S)-dihydroxy-(E)-6-heptenoate. 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 tert-Butyl Ester is generally used for Quality Control (QC), Quality Assurance (QA) during commercial production of Rosuvastatin and its related formulations. Moreover, tert-Butyl-7-[4-(4-fluorophenyl)-6-isopropyl-2-mesylaminopyrimidin-5-yl]-(3R,5S)-dihydroxy-(E)-6-heptenoate is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.