Cy3 is a reliable fluorescent dye which emits in the orange-red region of the spectrum and has a long history of use in the preparation of fluorescent bioconjugates. Vector Laboratories Cy3 dye is offered with many reactive groups facilitating conjugation to a wide range of target biomolecules including antibodies, antibody fragments, peptides, oligonucleotides and other small molecules. Cy3 conjugates are very bright, photostable, and function across a broad pH range.
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