N3-Poly(L-Glutamic Acid) (N3-pGlu)

Price range: $260.00 through $1,200.00

N3-Poly(L-Glutamic Acid) (N3-pGlu) is an azide-functionalized biodegradable polypeptide composed of poly(L-glutamic acid) with a terminal azide (N3) group. The azide functionality enables efficient click chemistry with alkyne- and DBCO-containing molecules, while the poly(L-glutamic acid) chain provides multiple carboxylic acid groups for drug conjugation, crosslinking, and biomaterial modification. N3-pGlu is widely used in drug delivery, bioconjugation, hydrogel synthesis, nanoparticle engineering, and biomedical research.

Product Name: N3-Poly(L-Glutamic Acid)
Alternative Name: N3-pGlu, Azide-Poly(L-Glutamic Acid), Azide-pGlu
Molecular Weight: Custom
Functional Groups: Terminal Azide (N3), Pendant Carboxylic Acids
Appearance: White to off-white powder or lyophilized solid
Solubility: Water, PBS, aqueous buffers; solubility may depend on pH and salt form
Storage: -20°C, dry and protected from light
Purity: Typically ≥95%

Description

General Description

N3-Poly(L-Glutamic Acid) is a functional polyanionic polypeptide designed for bioorthogonal conjugation and advanced biomaterials applications. The polymer contains a terminal azide group that participates in copper-catalyzed azide-alkyne cycloaddition (CuAAC) with terminal alkynes and strain-promoted azide-alkyne cycloaddition (SPAAC) with strained alkynes such as DBCO and BCN.

The poly(L-glutamic acid) backbone contains multiple pendant carboxylic acid groups that can be activated using EDC/NHS chemistry or peptide-coupling reagents for conjugation with amine-containing drugs, peptides, proteins, targeting ligands, polymers, and nanoparticles.

The combination of a biodegradable polypeptide backbone, abundant carboxyl groups, and a terminal azide makes N3-pGlu a versatile material for targeted drug delivery, polymer-drug conjugates, hydrogels, surface modification, molecular imaging, and nanomedicine research.

Applications

  • Click chemistry conjugation
  • Copper-free SPAAC conjugation
  • Drug conjugation
  • Polymer-drug conjugates
  • Nanoparticle functionalization
  • Hydrogel synthesis
  • Protein and peptide conjugation
  • Surface modification
  • Molecular imaging
  • Biomaterials research

Features and Benefits

  • Terminal azide functionality
  • Biodegradable poly(L-glutamic acid) backbone
  • Multiple pendant carboxylic acid groups
  • Compatible with CuAAC and SPAAC chemistry
  • Compatible with EDC/NHS coupling
  • Water-soluble polyanionic polymer
  • Suitable for drug and biomolecule conjugation
  • Available in multiple molecular weights

Additional information

Molecular weight

2500 (x=20), 5000 (x=38), 10K (x=76), 20K (x=154)

Package size

100mg, 500mg, 1g