Ethyl arachidonate-d 11 is deuterium labeled Ethyl arachidonate. Ethyl arachidonate is a lipophilic esterified form of arachidonic acid (AA) and can be added into dietary regimens or fed to cultured cells as a source of exogenous arachidonate. Ethyl arachidonate is the main species of fatty acid ethyl esters (FAEE) in brain of alcohol-intoxicated subjects.