Axispharm offers you high purity Pyrene Azide Plus, a fluorophore with an absorption maximum at 403 nm and an emission at 453 nm. It is a fluorescent agent with a terminal azide group, and Pyrene Azide Plus is designed with a copper chelating system in its structure, which can form a strong active copper complex, which acts as a reactant and catalyst in the CuAAC reaction.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.