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Spark Blue 574

Spark Blue™ 574 (Ex-Max 505 nm/Em-Max 570 nm)

Spark Blue™ 574 from Biolegend is a fluorophore designed for spectral flow cytometry with an excitation peak at 506 nm and an emission peak at 574 nm. This fluorophore is an alternative to Alexa Fluor™ 532 and can be efficiently excited by the 488 nm laser and can be unmixed from FITC and PE.

Excitation & emission spectra

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Key facts

Excitation maximum
505 nm
Emission maximum
570 nm
Optimal laser line
488
Optimal filter
585/42
Relative brightness
1 of 5
Commercial conjugates
21 from 2 suppliers

Spark Blue 574 has an excitation maximum at 505 nm and an emission maximum at 570 nm, a Stokes shift of 65 nm. It is optimally excited by the 488 laser line.

Frequently asked questions

What is Spark Blue 574?
Spark Blue™ 574 from Biolegend is a fluorophore designed for spectral flow cytometry with an excitation peak at 506 nm and an emission peak at 574 nm. This fluorophore is an alternative to Alexa Fluor™ 532 and can be efficiently excited by the 488 nm laser and can be unmixed from FITC and PE.
What laser excites Spark Blue 574?
Spark Blue 574 is optimally excited by the 488 laser line. Its excitation maximum is 505 nm.
What filter should I use to detect Spark Blue 574?
A 585/42 filter captures the peak of the Spark Blue 574 emission near 570 nm with minimal spillover.
How bright is Spark Blue 574?
Spark Blue 574 has a relative brightness of 1 out of 5.
How many antibodies are available conjugated to Spark Blue 574?
FluoroFinder tracks 21 commercially available Spark Blue 574 conjugates, searchable by target, clone, host and application.