DBCO-mPEG (MW 5kDa)

• CAT Number: I045930
• Molecular Weight: 5000(Average)
• Purity: ≥95%

DBCO-mPEG (MW 5kDa)（Cat No.:I045930）is a monofunctional polyethylene glycol derivative featuring a dibenzocyclooctyne (DBCO) group at one end and a methoxy group at the other. The DBCO functionality enables copper-free strain-promoted azide–alkyne cycloaddition (SPAAC), offering highly efficient and biocompatible click reactions without the need for catalysts. The 5 kDa PEG backbone improves aqueous solubility, reduces non-specific interactions, and enhances biostability, making it valuable for surface modification, biomolecule conjugation, and drug delivery applications. Its stability and reactivity support bioorthogonal labeling in both in vitro and in vivo research contexts.