APDye 633 Azide is a dye nearly identical in spectrum to Alexa Fluor® 633, DyLight® 633 or CF® 633. Bright and photostable far-red fluorescent probes ideal for excitation with 633 nm or 635 nm laser excitation sources. APDye 633 Azide is water soluble and pH insensitive from pH 4 to pH 10. The combination of superior brightness and very low autofluorescence background signal in most biological samples in the far-red spectral region allows for very sensitive detection of alkyne-labeled biomolecules. Alexa Fluor® 633 is a registered trademark of Thermo Fisher Scientific.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.