Loading the Dye Directory…

XFD555

XFD555 from AAT Bioquest has an excitation peak at 553 nm and an emission peak at 568 nm and is similar in size, brightness and application to Cy3, Alexa Fluor™ 555 (ThermoFisher Scientific), HiLyte™ 555 (AnaSpec) and CF555 (Biotium). It is commonly used in fluorescence microscopy applications.

Excitation & emission spectra

400450500550600650700750800

Key facts

Excitation maximum
553 nm
Emission maximum
568 nm
Optimal laser line
532, 561
Relative brightness
2 of 5
Extinction coefficient
155000
Molecular weight
947

XFD555 has an excitation maximum at 553 nm and an emission maximum at 568 nm, a Stokes shift of 15 nm. Its extinction coefficient is 155000 M⁻¹cm⁻¹. It is optimally excited by the 532, 561 laser line.

Frequently asked questions

What is XFD555?
XFD555 from AAT Bioquest has an excitation peak at 553 nm and an emission peak at 568 nm and is similar in size, brightness and application to Cy3, Alexa Fluor™ 555 (ThermoFisher Scientific), HiLyte™ 555 (AnaSpec) and CF555 (Biotium). It is commonly used in fluorescence microscopy applications.
What laser excites XFD555?
XFD555 is optimally excited by the 532, 561 laser line. Its excitation maximum is 553 nm.
How bright is XFD555?
XFD555 has a relative brightness of 2 out of 5.