Thiol-PEG-Hydrazide (HS-PEG-HZ, SH-PEG-HZ), MW 3.5K is a linear heterobifunctional PEGylation reagent. The hydrazide reacts with the carbonyl to form a hydrazone bond. Thiols can react with maleimides or alkenes in the presence of photoinitiators. For labeling glycoproteins, carbohydrate-containing compounds with oxidizable sugars or aldehydes.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
