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Spark NIR 685

Spark NIR 685 (Ex-Max 660 nm/Em-Max 685 nm)

Spark NIR® 685 from Biolegend is a fluorophore designed for spectral flow cytometry with an excitation peak at 633 nm and an emission peak at 685 nm. This fluorophore is an alternative to Alexa Fluor™ 660 and can be efficiently excited by the 633 nm laser and can be unmixed from Alexa Fluor™ 647 and Alexa Fluor™ 700.

Excitation & emission spectra

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Key facts

Excitation maximum
660 nm
Emission maximum
685 nm
Optimal laser line
628-640
Optimal filter
695/40
Relative brightness
2 of 5
Molecular weight
3100
Commercial antibodies
296 from 2 suppliers

Spark NIR 685 has an excitation maximum at 660 nm and an emission maximum at 685 nm, a Stokes shift of 25 nm. It is optimally excited by the 628-640 laser line.

Frequently asked questions

What is Spark NIR 685?
Spark NIR® 685 from Biolegend is a fluorophore designed for spectral flow cytometry with an excitation peak at 633 nm and an emission peak at 685 nm. This fluorophore is an alternative to Alexa Fluor™ 660 and can be efficiently excited by the 633 nm laser and can be unmixed from Alexa Fluor™ 647 and Alexa Fluor™ 700.
What laser excites Spark NIR 685?
Spark NIR 685 is optimally excited by the 628-640 laser line. Its excitation maximum is 660 nm.
What filter should I use to detect Spark NIR 685?
A 695/40 filter captures the peak of the Spark NIR 685 emission near 685 nm with minimal spillover.
How bright is Spark NIR 685?
Spark NIR 685 has a relative brightness of 2 out of 5.
How many antibodies are available conjugated to Spark NIR 685?
FluoroFinder tracks 296 commercially available Spark NIR 685 conjugates, searchable by target, clone, host and application.