Dolutegravir Enantiomer Impurity

Dolutegravir Enantiomer Impurity product with CAS: 1309575-43-6 is also known as Sodium (4S,12aR)-9-((2,4-difluorobenzyl)carbamoyl)-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1′,2′:4,5]pyrazino[2,1-b][1,3]oxazin-7-olate. This product can be used as a working standard or secondary reference standard. Additional internal validation as per respective FDA regulations/guidelines may require. It is used in Dolutegravir impurity profiling as per limits and threshold values specified by respective drug legislation, FDA, and pharmacopoeial guidelines. Moreover, Sodium (4S,12aR)-9-((2,4-difluorobenzyl)carbamoyl)-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1′,2′:4,5]pyrazino[2,1-b][1,3]oxazin-7-olate is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.