Atorvastatin (3S,5R)-Isomer Methyl Ester

Order Atorvastatin (3S,5R)-Isomer Methyl Ester impurity standard with CAS: 1429437-85-3 and speed up your Atorvastatin project. This product is also known as (3S,5R)-Atorvastatin Acid Methyl Ester; (3S,5R)-7-[3-(Phenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid methyl ester and can be used as a working standard or secondary reference standard. Additional internal validation as per respective FDA regulations/guidelines may require. This compound is generally used for Quality Control (QC), Quality Assurance (QA) during commercial production of Atorvastatin and its related formulations. Moreover, (3S,5R)-Atorvastatin 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.