NH-bis(PEG4-OH) is a branched PEG derivative with biotin andtwo hydroxyl moieties. The linker can be used for the conjugation of proteins and biotin labeling. The alcohol groups can be derivatized to various activated functional groups. The hydrophilic PEG linker together with tertiary amine spacer drastically increases the water solubility of the compound.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.