AF568 is a fluorescent dye with excitation maximum at 572 nm and emission maximum at 598 nm. It is a structural analogue of Alexa Fluor™ 568 stain which is a member of the well-known Alexa Fluor™ family. These dyes have better photostability than traditional fluorescent stains (fluorescein isothiocyanate FITC, phycoerythrin PE, Texas Red etc.).
AF568 carboxylic acid is a non-reactive form of AF568 dye that can be used as a reference standard in experiments involving AF568 dye conjugates. Besides, the carboxylic group can react with hydrazines, hydroxylamines, and amines using carbodiimides such as EDAC.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.