Acid-PEG5-NHS ester

Acid-PEG5-NHS ester


Acid-PEG5-NHS ester is a PEG linker containing a carboxylic acid and an NHS ester. The hydrophilic PEG spacer increases solubility in aqueous media. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Molecular structure of the compound BP-22220
    • Unit
    • Price
    • Qty
    • 100 MG
    • $345.00
    • 500 MG
    • $980.00
    • 1 G
    • $1470.00

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Product Citations


  1. Portas, P. V. (2024). Towards radiolabeled tracers for the Cs-rich microparticles released from the FDNPP. Imaging, 21(12), 4309.
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