Bis-Mal-Lysine-PEG4-acid (CAS: 1426164-52-4) is a bifunctional PEG linker with two maleimide groups for thiol coupling and a carboxylic acid for amine conjugation. Its PEG4 spacer enhances solubility, making it ideal for bioconjugation, ADC synthesis, protein labeling, and drug delivery applications.
Polyethylene Glycol PEG Linkers > Maleimide PEG > Bis-Mal-Lysine-PEG
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