Bromo-PEG5-phosphonic acid diethyl ester linker contains a bromine and a hydrophilic PEG chain.The bromine group is a good leaving group and easily undergoes substiution reactions. Phosphonic acid is used for surface modification. The hydrophilic PEG linker can increase the solubility of a compound in aqueous media and improve the hydrophilicity of the surfaces.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.