sulfo cy5 diacid, se

Cy5-bifunctional dye is a derivative of CY5. CY5 is an amine-reactive fluorophore with excitation/emission wavelengths of 650/670 nm, commonly employed for labelling nucleic acids and proteins.

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.