A2G2F2 glycan [A2G2F2(a1-3) glycan] is a symmetrical N-glycan containing two Lewis X epitopes, and is a type of Lewis X polysaccharide. SLeX serves as a ligand for the cell adhesion molecule E-selectin, which is specifically expressed at sites of inflammation. Designing conjugates of SLeX-polysaccharides can facilitate targeted drug delivery to inflammatory lesions.