Benzyl-PEG5-alcohol contains an acid labile benzyl group and a primary alcohol group. The primary alcohol can be derivatized to active functional group for bioconjugation. The benzyl group can be removed under mild acidic condition or hydrogenation to afford a second alcohol group for futher modification. The hydrophilic PEG spacer can increase the solubility of the compound in aqueous media.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.