AF430 (also known as Alexa Fluor™ 430) is a sulfonated coumarin dye that is useful for flow cytometry and antibody labeling. The fluorescence is constant in wide range of pH values.
This particular derivative contains terminal alkyne group that is suitable for copper catalyzed CuAAc reaction.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.