BDP 630/650 is a borondipyrromethene dye with red emisssion. This fluorophore matches Cyanine5 channel that is often used when minimal background is desired.
Tetrazines react with trans-cyclooctenes in an ultra fast reaction called TCO ligation.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.