tert-Butyl [(4R,6S)-6-(chloromethyl)-2,2-dimethyl-1,3-dioxan-4-yl]acetate

tert-Butyl [(4R,6S)-6-(chloromethyl)-2,2-dimethyl-1,3-dioxan-4-yl]acetate product with CAS: 154026-94-5 is also known as (4R-cis)-6-Chloromethyl-2,2-dimethyl-1,3-dioxane-4-acetic Acid tert-Butyl 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. tert-Butyl [(4R,6S)-6-(chloromethyl)-2,2-dimethyl-1,3-dioxan-4-yl]acetate is generally used for Quality Control (QC), Quality Assurance (QA) during commercial production of Rosuvastatin and its related formulations. Moreover, (4R-cis)-6-Chloromethyl-2,2-dimethyl-1,3-dioxane-4-acetic 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.