Flamma® 774 Vinylsulfone

Flamma® Fluors 774 Vinylsulfone is pH insensitive reactive form of near infrared (NIR) fluorescent dye and used to generate a stable fluorescence signal with high signal-to-noise ratio. The maxima of Ex/Em values are at 774/795 nm, similar to that of Cy7.5 and CF770. Flamma 774 dyes might be excited using 750 or 785 nm laser line or dye-pumped laser excitation and the emission occurs at NIR region. Flamma Fluors 774 is ideal for protein, antibody and nucleic acid labeling for in vitro imaging and other fluorescence detection methods. Vinylsulfones readily react with primary amines of amino-modified oligonucleotides or of proteins to form a stable amino linkage between dye and the biomolecule. We offer Flamma Fluors 774 Vinylsulfone for labeling of antibodies, peptides, proteins, ligands and in vivo NIR imaging.