• Synonyms：
  4-ArmPEG-Glutaramide Acid
  
• Purity：
  ≥95%
• Recommended Storage Condition：
  Store at -5°C,keep in dry and avoid sunlight.
• Uses：
  Applicated in medical research, drug-release, nanotechnology and new materials research, cell culture. In the study of ligand, polypeptide synthesis support, a graft polymer compounds, new materials, and polyethylene glycol-modified functional coatings and other aspects of the active compound.

4-Arm PEG-GAA (4-ArmPEG-Glutaramide Acid) is a highly versatile, multi-arm PEG derivative engineered for advanced biomaterial and pharmaceutical applications. Structurally, it features a central pentaerythritol core that branches into four arms, each terminating in an active carboxylic acid (COOH) group connected via a stable C4 amide linkage. This unique multi-arm design makes it an exceptionally effective reagent for modifying proteins, peptides, and other materials, as its terminal carboxyl groups easily react with amine groups to form stable amide bonds. 

Biopharma PEG offers a wide range of PEG linkers on both lab and commercial scales. Email at [email protected] and start using a superior product for your next product R&D project.