Merck, C1117-200UL, Anti-Cy5 antibody, Mouse monoclonal

CyDyes are a family of fluorophores that can be used for labeling proteins, peptides, DNA, RNA, and other biomolecules. These dyes are small, pH insensitive (between pH 3 and pH 10), and soluble in aqueous solution and have tolerance to DMSO. They are more photo-stable than fluorescein, have high molar extinction coefficients, and favorable quantum yields. Due to their physical and chemical properties, they are used (mainly Cy3 and Cy5) in many different biological assays such as: DNA microarrays, protein microarrays, two-dimensional protein analysis (2D gels), fluorescence resonance energy transfer (FRET), and immunocytochemistry.