FmocNH-PEG5-CH2CO2-NHS ester contains an Fmoc group and an NHS ester group. The PEG spacer increases the aqueous solubility of the resulting compound. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The Fmoc group can be deprotected under basic condition to obtain the free amine which can be used for further conjugations.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
