BDP 650/665 is a borondipyrromethene dye with far red excitation and emission. The dye has a good molar extinction coefficient and emission quantum yield.
The NHS ester can be conjugated with amine groups of proteins, peptides, and other molecules. The molecule contains an additional aminohexanoic acid linker.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.