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DY-521XL

DY-521XL (Ex-Max 524 nm/Em-Max 667 nm)

DY-521XL from Dyomics is a member of their MegaStokes fluorophore family. These dyes are characterized by very dramatic Stokes Shifts between their excitation and emission peaks. This fluorophore has an excitation peak at 533 nm and an emission peak at 674 nm. Although spectrally they could be applied to flow cytometry applications, they exhibit wide emission ranges that will spillover into neighboring emission channels. They are most commonly used for fluorescence microscopy.

Excitation & emission spectra

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Key facts

Excitation maximum
533 nm
Emission maximum
674 nm
Optimal laser line
532
Optimal filter
660/20
Relative brightness
2 of 5

DY-521XL has an excitation maximum at 533 nm and an emission maximum at 674 nm, a Stokes shift of 141 nm. It is optimally excited by the 532 laser line.

Frequently asked questions

What is DY-521XL?
DY-521XL from Dyomics is a member of their MegaStokes fluorophore family. These dyes are characterized by very dramatic Stokes Shifts between their excitation and emission peaks. This fluorophore has an excitation peak at 533 nm and an emission peak at 674 nm. Although spectrally they could be applied to flow cytometry applications, they exhibit wide emission ranges that will spillover into neighboring emission channels. They are most commonly used for fluorescence microscopy.
What laser excites DY-521XL?
DY-521XL is optimally excited by the 532 laser line. Its excitation maximum is 533 nm.
What filter should I use to detect DY-521XL?
A 660/20 filter captures the peak of the DY-521XL emission near 674 nm with minimal spillover.
How bright is DY-521XL?
DY-521XL has a relative brightness of 2 out of 5.