Used as a cell culture supplement to support cell growth and viability, particularly in microbial and mammalian systems. Acts as a source of phosphorus and ethanolamine, which are essential for phospholipid biosynthesis in cell membranes. Enhances the production of membrane components in biotechnological applications, including recombinant protein expression. Also studied for its role in metabolic pathways related to glycerophospholipid metabolism, making it useful in biochemical research and enzyme assays.