1. Metabolic Labeling & Glycobiology  
- Tracking Glycosylation:  
  - Cells metabolize this compound, incorporating it into glycoproteins/glycolipids. The azido group allows subsequent labeling with alkyne probes (e.g., fluorescent dyes, biotin) via **CuAAC** (copper-catalyzed azide-alkyne cycloaddition) or **SPAAC** (strain-promoted click chemistry).  
  - Applications: Visualizing aberrant glycosylation in cancer cells or pathogens.  
- Glycan Profiling:  
  - Used in glycan arrays to study carbohydrate-protein interactions (e.g., lectin binding).  
2. Drug Delivery & Targeted Therapy  
- Antibody-Drug Conjugates (ADCs):  
  - Azido groups enable site-specific conjugation of toxins or drugs to glycosylated antibodies, improving therapeutic precision.  
- Prodrug Activation:  
  - Exploits glucose transporters (e.g., GLUT1) to deliver azido-tagged prodrugs to tumors, followed by click-triggered release.  
3. Material Science & Bioengineering  
- Surface Functionalization:  
  - Grafted onto polymers or nanoparticles for bioactive coatings (e.g., antimicrobial surfaces, tissue scaffolds).  
- Hydrogel Design:  
  - Crosslinked via click chemistry to create glycosylated hydrogels for 3D cell culture.  
 4. Vaccine Development 
- Synthetic Glycoconjugate Vaccines:  
  - Azido sugars serve as intermediates to link bacterial polysaccharides to carrier proteins (e.g., Streptococcus pneumoniae vaccines).  
 5. Enzyme Inhibition Studies  
- Glycosidase Inhibitors:  
  - Mimics natural substrates to design inhibitors for enzymes like hexokinase or O-GlcNAc transferase, relevant in diabetes/metabolic disorders.