APDye 800 is a conceptually new sterically shielded NIR cyanine heptamethine dye that is spectrally nearly identical to IRDye 800CW and DyLight 800. The dye contains two shielding PEG arms directly on both sides of the heptamethyl fluorochrome, preventing any undesired bimolecular association process, resulting in a significant increase in fluorescence brightness. Its excitation is ideal for imaging systems with the 800nm channel. APDye 800 Picolyl Azide is an advanced fluorescent probe that incorporates a copper chelating motif to increase the effective concentration of Cu(I) at the reaction site, thereby increasing the efficiency of the CuAAC reaction for faster and more Biocompatible CuAAC labeling.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.