m-PEG3-(CH2)3-alcohol linker contains a hydroxyl group. The hydroxyl group can be derivatized to other reactive functional group for conjugation and surface modification purposes. The mPEG modification drastically increases the aqueous solubility of the resulting compound.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.