Ethyl cis-4,7,10,13,16,19-Docosahexaenoate, the ethyl ester of Docosahexaenoate (DHA), is selectively enriched in the ethyl ester fraction through the alcoholysis process involving fatty acid ethyl esters from tuna oil and lauryl alcohol.
Valsartan Ethyl Ester is an impurity of Valsartan, an angiotensin II receptor antagonist used for the treatment of high blood pressure and heart failure.