HO-PEG-Valeric acid(HO-PEG-VA), MW 5K is a linear PEG polymer with terminal carboxylic acid. The hydroxyl group can be further modified to derive compounds. Particularly suitable for the development of antibody drug conjugates (ADCs).
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.