Tritylthiol‑Terminated Poly(L‑Lysine), MW 3.3 kDa (Trt‑SH‑PLL):
- Linear cationic poly‑L‑lysine (≈ 20 lysine units) with a trityl‑protected thiol (Trt‑S‑) end‑group; MW ≈ 3 300 Da.
- Water‑soluble; positively charged backbone complexes anionic biomolecules (DNA/RNA, proteins).
- Trityl group protects thiol from oxidation; deprotected under mild acid to release reactive ‑SH for bioconjugation.
- Used in site‑specific conjugation, redox‑responsive delivery, surface modification, and gene/drug carrier design.
- Supplied as solid (≥ 95% purity); store at ‑20 °C under inert gas.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.