N-oleoyl-D-erythro-sphingosine is widely used in research related to lipid signaling and cellular processes. It serves as a key component in studying the role of sphingolipids in cell membranes, particularly in understanding their involvement in apoptosis, cell proliferation, and differentiation. This compound is also utilized in the development of lipid-based drug delivery systems, where it enhances the stability and efficacy of therapeutic agents. Additionally, it plays a significant role in investigating the mechanisms of neurodegenerative diseases and cancer, providing insights into potential therapeutic targets. Its application extends to cosmetic formulations, where it is valued for its moisturizing and skin barrier-enhancing properties.