Copper free Click chemistry reaction between strained cycloalkynes (cyclooctynes), and azides, is a very fast and robust reaction. It can be used for a fast labeling with fluorescent dyes. This reagent is a derivative of water soluble sulfo-Cyanine5 dye which emits in red channel. It is useful for the labeling of biomolecules in aqueous media.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.