Keystone essential fatty acid that is converted by COX, LO, and epoxygenase enzymes into more than 150 potent metabolites in species ranging from fungi to plants to mammals.

Single-use arachidonic acid (peroxide free) consists of 10 sealed ampules, each containing >1 ml of ethanolic solution of fatty acid at a concentration of 500 µg/ml. Peroxides were removed by silicic acid chromatography. The headspace in each ampule is purged with argon. Single-use…

Free arachidonic acid is a transient, critical substrate for the biosynthesis of eicosanoid second messengers. Arachidonic acid oxidizes spontaneously on exposure to room air, yielding a complex mixture of fatty acid peroxides. Peroxide-free arachidonic acid is obtained after removal of the…