Acetal‑Poly(L‑lysine), MW 3.3K (Acetal‑PLL, MW 3,300).
- Structure: Positively charged synthetic polyamino acid with α‑peptide‑linked L‑lysine units, one terminal acetal group, and multiple side‑chain primary amines.
- Key Properties: Crystalline solid; water‑soluble; acetal deprotects to aldehyde under mild acid (pH 2–4).
- Core Function: Acetal acts as a protected aldehyde; deprotected aldehyde selectively conjugates with amines/thiols.
- Applications: Bioconjugation, gene delivery, cell adhesion promotion, layer‑by‑layer assembly, and pH‑responsive carriers.
- Storage: −20 °C, protected from light and moisture.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.