NH2-TK-PEG5K-TK-NH2

NH2-TK-PEG5K-TK-NH2(amino-ketothiol-polyethylene glycol-ketothiol-amino)/NH2-Thioketal-PEG5000-Thioketal-NH2 is an intelligent polymer linker with dual reactivity and dual reaction sites, designed specifically for constructing highly stable drug delivery systems and environmentally responsive biomaterials. Its core advantage lies in the use of two ketothiol(TK) bonds to achieve sensitive cleavage of the redox microenvironment (such as high glutathione concentration at tumor sites), while the amino groups (-NH2) at both ends provide a flexible chemical modification interface for bidirectional coupling of drugs, targeted ligands, or nanocarriers.

msds of NH2-TK-PEG5K-TK-NH2