Bis-PEG6-acid is a symmetric bifunctional PEG linker featuring two carboxylic acid groups connected by a PEG6 spacer. It specifically enables efficient amide bond formation with amines, offering improved solubility, reduced steric hindrance, and flexibility in bioconjugation, surface modification, and PEGylation workflows.
Polyethylene Glycol PEG Linkers > Bis-PEG-acid > Bis-PEG-acid
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