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PromoFluor 405

PromoFluor 405 (Ex-Max 401 nm/Em-Max 422 nm)

PromoFluor 405 is a fluorophore with an excitation peak at 400 nm and an emission peak at 420 nm. It is equivalent to Alexa Fluor™ 405 and Pacific Blue in size, brightness and application. It can be used with the following analysis platforms: Flow Cytometry and Fluorescence Microscopy.

Excitation & emission spectra

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Key facts

Excitation maximum
401 nm
Emission maximum
422 nm
Optimal laser line
405
Optimal filter
450/50
Relative brightness
2 of 5
Quantum yield
0.968

PromoFluor 405 has an excitation maximum at 401 nm and an emission maximum at 422 nm, a Stokes shift of 21 nm. It is optimally excited by the 405 laser line.

Frequently asked questions

What is PromoFluor 405?
PromoFluor 405 is a fluorophore with an excitation peak at 400 nm and an emission peak at 420 nm. It is equivalent to Alexa Fluor™ 405 and Pacific Blue in size, brightness and application. It can be used with the following analysis platforms: Flow Cytometry and Fluorescence Microscopy.
What laser excites PromoFluor 405?
PromoFluor 405 is optimally excited by the 405 laser line. Its excitation maximum is 401 nm.
What filter should I use to detect PromoFluor 405?
A 450/50 filter captures the peak of the PromoFluor 405 emission near 422 nm with minimal spillover.
How bright is PromoFluor 405?
PromoFluor 405 has a relative brightness of 2 out of 5 (quantum yield 0.968).