Endogenous polyunsaturated fatty acid. Stimulates ERK1/2 and C/EBPβ phosphorylation, and induces demethylation of CpG island B in U937 leukemia cells. Attenuates proliferation of U9137 cells, and induces cell cycle arrest and apoptosis in pancreatic cells in vitro. Also inhibits leukotriene B4 synthesis in rats. Purity 98%. MW (observed): 302.45