Used in medical research for studying cellular recognition processes, particularly in the immune system and viral infections like influenza, where it plays a role in blocking pathogen attachment to host cells. Serves as a building block in synthesizing glycoconjugates for drug development. Applied in dermatology and cosmetics for its potential in improving skin hydration and reducing signs of aging. Investigated for use in infant formula to support brain development and immune function. Also utilized in diagnostic kits and biochemical assays involving sialic acid metabolism.