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Spark YG 581

Spark YG™ 581 (Ex-Max 564 nm/Em-Max 581 nm)

Spark YG™ 581 from Biolegend is a fluorophore designed for spectral flow cytometry with an excitation peak at 565 nm and an emission peak at 581 nm. This fluorophore is an alternative to Alexa Fluor™ 568 and efficiently excited by the 561 nm laser with minimal cross-beam excitation by the 488 nm laser.

Excitation & emission spectra

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Key facts

Excitation maximum
564 nm
Emission maximum
581 nm
Optimal laser line
561
Relative brightness
2 of 5
Commercial antibodies
202 from 2 suppliers

Spark YG 581 has an excitation maximum at 564 nm and an emission maximum at 581 nm, a Stokes shift of 17 nm. It is optimally excited by the 561 laser line.

Frequently asked questions

What is Spark YG 581?
Spark YG™ 581 from Biolegend is a fluorophore designed for spectral flow cytometry with an excitation peak at 565 nm and an emission peak at 581 nm. This fluorophore is an alternative to Alexa Fluor™ 568 and efficiently excited by the 561 nm laser with minimal cross-beam excitation by the 488 nm laser.
What laser excites Spark YG 581?
Spark YG 581 is optimally excited by the 561 laser line. Its excitation maximum is 564 nm.
How bright is Spark YG 581?
Spark YG 581 has a relative brightness of 2 out of 5.
How many antibodies are available conjugated to Spark YG 581?
FluoroFinder tracks 202 commercially available Spark YG 581 conjugates, searchable by target, clone, host and application.