Tritylthiol-Poly(L-Glutamic Acid) (Trt-pGlu)

Price range: $260.00 through $1,260.00

Tritylthiol-Poly(L-Glutamic Acid) (Trt-pGlu) is a trityl-protected thiol-functionalized biodegradable polypeptide composed of poly(L-glutamic acid) with a terminal trityl-protected thiol (Trt-SH) group. The trityl group protects the thiol during synthesis and can be readily removed under mild acidic conditions to generate free thiol-functionalized poly(L-glutamic acid). Trt-pGlu is widely used in polymer synthesis, drug delivery, bioconjugation, hydrogel preparation, and biomaterials research.

Product Name: Tritylthiol-Poly(L-Glutamic Acid)
Alternative Name: Trt-pGlu, Trt-SH-pGlu, Trityl-Protected Thiol-Poly(L-Glutamic Acid)
Molecular Weight: Custom
Functional Groups: Terminal Trityl-Protected Thiol (Trt-SH), Pendant Carboxylic Acids
Appearance: White to off-white powder or lyophilized solid
Solubility: Water, PBS, aqueous buffers (pH dependent)
Storage: -20°C, dry and protected from light
Purity: Typically ≥95%

Description

General Description

Tritylthiol-Poly(L-Glutamic Acid) is a functional polypeptide designed as a protected intermediate for preparing thiol-reactive poly(L-glutamic acid) derivatives. The terminal thiol is protected with a trityl (Trt) group, providing excellent stability during synthesis and storage while preventing premature oxidation and disulfide formation.

Following deprotection, the resulting thiol-functionalized poly(L-glutamic acid) readily participates in thiol-maleimide conjugation, thiol-ene click chemistry, disulfide formation, gold surface immobilization, and Michael addition reactions.

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 proteins, peptides, antibodies, drugs, polymers, and nanoparticles. The biodegradable polymer backbone and protected thiol functionality make Trt-pGlu an excellent intermediate for preparing advanced drug delivery systems, hydrogels, polymer-drug conjugates, and biomaterials.

Applications

  • Thiol-functional polymer synthesis
  • Drug conjugation
  • Polymer-drug conjugates
  • Hydrogel synthesis
  • Protein and peptide conjugation
  • Nanoparticle functionalization
  • Surface modification
  • Thiol click chemistry
  • Biomaterials development
  • Biomedical research

Features and Benefits

  • Terminal trityl-protected thiol
  • Easy acid deprotection
  • Prevents thiol oxidation during storage
  • Biodegradable poly(L-glutamic acid) backbone
  • Multiple pendant carboxylic acid groups
  • Compatible with EDC/NHS coupling
  • Excellent aqueous solubility
  • 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