PEG di(carboxylic acid), Mp 2000

PEG Di(Carboxylic Acid) (HOOC-PEG-COOH) is a bifunctional PEG derivative containing two terminal carboxyl (-COOH) groups, enabling efficient conjugation via amide bond formation (EDC/NHS coupling), esterification, and crosslinking reactions. This functionality makes it highly valuable for bioconjugation, hydrogel synthesis, and surface modification. Due to its water solubility and biocompatibility, PEG di(carboxylic acid) is widely used in drug delivery, tissue engineering, and biomaterial coatings.

Applications:
Bioconjugation & Protein Labeling: Forms stable amide bonds with amine-containing biomolecules for PEGylation.
Hydrogel & Scaffold Engineering: Serves as a crosslinker in biodegradable hydrogel networks.
Nanoparticle Functionalization: Improves stability and biocompatibility in drug delivery systems.
Surface Modification & Biomaterials: Enhances biofunctionality of medical implants and biosensors.