This compound, DBCO-C-PEG1, is widely used in click chemistry reactions, particularly for bioorthogonal labeling and conjugation via strain-promoted alkyne-azide cycloaddition (SPAAC). The DBCO group enables efficient reaction with azides without requiring a catalyst, making it ideal for biological systems such as cell, protein, or DNA labeling. The PEG1 linker enhances molecular stability and water solubility, suitable for bioorthogonal applications in living systems. Its applications are prominent in the development of bioconjugates, attaching biomolecules like proteins, peptides, and antibodies to substrates or probes. It is also utilized in drug delivery systems for targeted therapies by linking therapeutic agents to carriers. Additionally, it plays a role in material science for surface functionalization and advanced polymeric materials. Its stability and efficiency make it a valuable tool in research and industrial applications.