High-purity CAS:2107273-56-1 N-methyl-N’-methyl-O-(m-PEG4)-O’-(azide-PEG4)-Cy5 from Axispharm is a A cyanine dye and a PEG linker for the azide group, which enables Click Chemistry. Hydrophilic PEG spacers increase solubility in aqueous media.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.