Ald-CH2-PEG3-Propargyl (CAS: 2249926-66-5) is a bifunctional PEG linker with an aldehyde for aminooxy or hydrazine coupling and a propargyl group for CuAAC “click” reactions. Its PEG₃ spacer enhances solubility and flexibility, making it ideal for bioconjugation, drug development, and advanced molecular synthesis.
Polyethylene Glycol PEG Linkers > Aldehyde PEG > Ald-CH2-PEG-propargyl
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