(5R)-6-Cyano-5-hydroxy-3-oxo-hexanoic Acid tert-Butyl Ester

Order Atorvastatin impurity standard with CAS: 125988-01-4 and speed up your Atorvastatin project. This product is also known as (5R)-6-Cyano-5-hydroxy-3-oxo-hexanoic Acid tert-Butyl Ester; R-tert-Butyl 6-Cyano-5-hydroxy-3-oxohexanoate 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, (5R)-6-Cyano-5-hydroxy-3-oxo-hexanoic Acid tert-Butyl Ester is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.