NH-(mPEG)2
NH-(mPEG)â‚‚ consists of a central primary amine group symmetrically linked to two monomethoxy polyethylene glycol chains. The amine group in NH-(mPEG)â‚‚ provides a reactive site for conjugation with carboxyl groups or other electrophiles. NH-(mPEG)â‚‚ is commonly used as a branched hydrophilic spacer, crosslinker, or building block for dendrimer synthesis in bioconjugation and material science.
