Alabiochem's services include custom synthesis of PEG derivatives;and  site-specific PEGylation of peptides  antibodies,proteins, aptamers, DNAs. Pegpharm also offers biological macromolecules and functional PEG resins.Fluorescence labeling for small molecules,peptide, biologics, polysaccharide,  nanoparticles, microspheres, and self-assemblies is our unique service.