SVA-PEG-SVA (PEG-bis-Succinimidyl Valerate), MW 3.4K is a polymer commonly used in PEGylation, the reaction between amine and NHS forms a stable amide bond and can be easily accomplished in aqueous solutions at physiological pH .
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.