DBCO-NHCO-PEG4-NHS ester is a PEG analogue containing NHS ester that is able to react specifically and efficiently with primary amines such as the side chain of lysine residues or aminosilane-coated surfaces at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and can also provide a long and flexible connection that minimizes steric hindrance during ligation. References: Wang H, Tang L, Liu Y, Dobrucka IT, Dobrucki LW, Yin L, Cheng J. In Vivo Targeting of Metabolically Labeled Cancers with Ultra-Small Silica Nanoconjugates. Theranostics. 2016 Jun 16;6(9):1467-76. doi: 10.7150/thno.16003. eCollection 2016. PubMed PMID: 27375793; PubMed Central PMCID: PMC4924513.

纯度：≥98%

CAS：2100306-58-7