APDye™ 488 NHS Ester (Alexa Fluor® 488 NHS Ester equivalent) is an amine reactive, green-emitting dye routinely used to label proteins or antibodies through primary amines (Lys), amine-modified oligonucleotides, and other amine-containing biomolecules.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.