A synthetic methyl glycoside of the hyaluronic acid (HA) disaccharide repeat, GlcAβ1-3GlcNAc. Hyaluronic acid (HA) is a non-sulfated glycosaminoglycan composed of repeating GlcAβ1-3GlcNAc disaccharide units, abundant in the extracellular matrix and synovial fluid, where it contributes to tissue hydration, viscoelasticity, and signaling through HA-binding receptors such as CD44 and RHAMM. Synthetic HA-related fragments are valuable probes for HA-binding protein interactions and matrix biology research.