Glycerophosphorylethanolamine (GroPEtn) sodium is an active phosphodiester metabolite of Phosphatidylethanolamine. Glycerophosphorylethanolamine sodium promotes the aggregation of amyloid β-protein ( Aβ (1-40) ) in vitro. Glycerophosphorylethanolamine sodium can be used in the field of neurodegenerative diseases, such as Alzheimer’s disease research.