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NHS ester PEG

N-hydroxysuccinimide (NHS) ester-activated PEG linker is an amine-reactive reagent that can be used to modify proteins, peptides, or any other surface with available amino groups. The NHS ester reacts effectively with the primary amino group (-NH2) in a neutral or weakly alkaline buffer to form a stable amide bond. Because antibodies and other proteins often contain multiple lysine (K) residues in addition to the N-terminus of each polypeptide, they have multiple primary amines that can be targeted with NHS-activated PEG reagents.

Biopharma PEG offers the following PEG NHS ester. Different kinds of PEG NHS ester products may be available by custom synthesis.

Catalog No. Name Structure M.W. Purity