Mal-PEG2-CH2COOH (CAS 173323-23-4) is a bifunctional PEG linker with a maleimide group for thiol conjugation and a carboxylic acid group for amide bond formation. Connected by a PEG2 spacer, it improves solubility and flexibility, making it ideal for bioconjugation, drug delivery, and surface modification.
Polyethylene Glycol PEG Linkers > Maleimide PEG > Mal-PEG-CH2COOH
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