mPEG-Nitrophenyl Carbonate (mPEG-NPC), MW 10K is a nitrophenyl-functionalized PEG that can be used to modify the surface of proteins, peptides, or any other surface with available amino groups at their lysine residues or N-terminus.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.