Rosuvastatin (6S)-Isomer Methyl Ester

Rosuvastatin (6S)-Isomer Methyl Ester product with CAS: NA is also known as (βR,δS,6S)-8-Fluoro-5,6-dihydro-β,δ-dihydroxy-4-(1-methylethyl)-2-[methyl(methylsulfonyl)amino]benzo[h]quinazoline-6-pentanoic Acid Methyl Ester. 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 (6S)-Isomer Methyl Ester is generally used for Quality Control (QC), Quality Assurance (QA) during commercial production of Rosuvastatin and its related formulations. Moreover, (βR,δS,6S)-8-Fluoro-5,6-dihydro-β,δ-dihydroxy-4-(1-methylethyl)-2-[methyl(methylsulfonyl)amino]benzo[h]quinazoline-6-pentanoic Acid Methyl Ester is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.