(3S,5R)-6-Cyano-3,5-dihydroxy-hexanoic Acid tert-Butyl Ester

Order Atorvastatin impurity standard with CAS: 186508-94-1 and speed up your Atorvastatin project. This product is also known as (3S,5R)-6-Cyano-3,5-dihydroxy-hexanoic Acid tert-Butyl Ester; (3S,5R)-6-Cyano-3,5-dihydroxy-hexanoic Acid 1,1-Dimethylethyl 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)-6-Cyano-3,5-dihydroxy-hexanoic Acid tert-Butyl Ester; (3S,5R)-6-Cyano-3,5-dihydroxy-hexanoic Acid 1,1-Dimethylethyl Ester is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.