N- (PEG1-acid) -L-Lysine-amido-Mal - CAS 2698339-21-6

N- (PEG1-acid) -L-Lysine-amido-Mal is a PEG-based linker featuring terminal maleimide and carboxylic acid groups. The hydrophilic PEG spacer enhances solubility in aqueous media. The maleimide group covalently reacts with thiol groups, facilitating biomolecule-thiol conjugation. The terminal carboxylic acid can form a stable amide bond with primary amines in the presence of activators (e.g., EDC or HATU) .

2698339-21-6

C18H28N4O7

412.438

O=C(O)CCOCCC(=O)NCCCCC(N)C(=O)NCCN1C(=O)C=CC1=O

-20°C

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