ALKYNE-PEG3-COOH (propynyl Triethylene Glycol Carboxyl)

ALKYNE-PEG3-COOH (propynyl tripolyethylene glycol carboxyl) cas:1347760-82-0 is a bifunctional triethylene glycol derivative with carboxyl and alkyne moiety. The former can be activated by peptide coupling reagents such as pybop or carbodiimide such as EDC to form stable amide bonds with amines. Alkynyl can be coupled with azide in cuaac reaction. Peg is a hydrophilic connector, which can be used to synthesize water-soluble conjugates.