XFD594 C5 Maleimide *Same Structure to Alexa Fluor(TM) 594 C5 Maleimide*

Molecular weight: 908.97. Excitation (nm): 590. Emission (nm): 618. Extinction coefficient (cm-1 M-1): 92000. Quantum yield: 0.66. Correction factor (280 nm): 0.56. XFD594 C5 Maleimide is the same molecule to Alexa Fluor(R) 594 C5 Maleimide (Alexa Fluor(R) is the trademark of ThermoFisher). It is a bright red-fluorescent dye optimal for use with the frequency-doubled He-Ne laser line. XFD594 dye is water soluble and pH-insensitive from pH 4 to pH 10. The C5 maleimide of XFD594 is the most convenient thiol-reactive form for conjugating this dye to a protein or antibody.