N,N-Bis(PEG1-azide)-N-PEG2-NHS ester is a branched biotin probe with an azide group and a methyl ester terminal group. The azide group undergoes click chemistry to conjugate alkyne bearing biomolecules. The NHS ester can be used to conjugate with amine containing proteins, oligonucleotides, and other molecules.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.