HyNic-PEG-Propargyl is a functional group commonly used in pharmaceutical research and development. The HyNic moiety is an abbreviation for 6-hydrazinonicotinamide, a compound that can be used to conjugate biomolecules for targeted drug delivery. The PEG component refers to polyethylene glycol, a polymer commonly used in pharmaceuticals due to its biocompatibility and ability to increase solubility. The Propargyl group, on the other hand, is a reactive alkyne that can be used in click chemistry to facilitate the rapid synthesis of complex molecules. HyNic-PEG-Propargyl is a versatile functional group that can be used in a range of applications, including the development of novel drug delivery systems, imaging agents, and diagnostic tools.