cy5 nhs ester

CY5-SE (Cy5 NHS Ester) is a reactive dye used to label amino groups in peptides, proteins and nucleotides. It needs to be stored away from light. Excitation wavelength (nm): 640, emission wavelength (nm): 664.

CY5-SE triethylamine salt (Fluorolink Cy5 triethanolamine salt) is a hydrophilic amine-reactive fluorescent probe. It displays excitation/emission maxima of 646/662 nm, respectively. Cy5-SE-conjugated ligands have been used in the characterization of hematopoietic tumor microenvironments.

Cy5-bifunctional dye potassium is a water-soluble bifunctional dye with two NHS ester terminal groups. The NHS ester can react specifically and efficiently under neutral or mildly alkaline conditions with primary amines, such as lysine residue side chains or amino silane-coated surfaces, forming covalent bonds. This dye is applicable for amine cross-linking and other advanced labeling applications.

UBQ-3 NHS ester is a fluorescent agent featuring a terminal NHS ester group. It has a broad quenching range of 620–730 nm, enabling it to be used as an acceptor for fluorescence resonance energy transfer (FRET) applications with far-red to near-infrared dyes, such as Cy5, Cy5.5, Alexa Fluor 633, 647, 700. The NHS ester can label proteins, amine-modified oligonucleotides, and other amine-containing primary amines (-NH2).