Loading the Dye Directory…

Alexa Fluor 700

Alexa Fluor™ 700 (Ex-Max 702 nm/Em-Max 723 nm)

Alexa Fluor™ 700 (AF700, Alexa 700) has an excitation peak at 702 nm and an emission peak at 723 nm, and is spectrally similar to iFluor® 680 (ATT Bioquest) and iFluor® 700 (ATT Bioquest). Alexa 700 is commonly used in Flow Cytometry and is similar in size, brightness and application to iFluor® 700 and Vio® R720.

Excitation & emission spectra

400450500550600650700750800

Key facts

Excitation maximum
702 nm
Emission maximum
723 nm
Optimal laser line
628-640
Optimal filter
730/45
Relative brightness
1 of 5
Extinction coefficient
192000
Commercial antibodies
25.3k from 18 suppliers

Alexa Fluor 700 has an excitation maximum at 702 nm and an emission maximum at 723 nm, a Stokes shift of 21 nm. Its extinction coefficient is 192000 M⁻¹cm⁻¹. It is optimally excited by the 628-640 laser line.

Frequently asked questions

What is Alexa Fluor 700?
Alexa Fluor™ 700 (AF700, Alexa 700) has an excitation peak at 702 nm and an emission peak at 723 nm, and is spectrally similar to iFluor® 680 (ATT Bioquest) and iFluor® 700 (ATT Bioquest). Alexa 700 is commonly used in Flow Cytometry and is similar in size, brightness and application to iFluor® 700 and Vio® R720.
What laser excites Alexa Fluor 700?
Alexa Fluor 700 is optimally excited by the 628-640 laser line. Its excitation maximum is 702 nm.
What filter should I use to detect Alexa Fluor 700?
A 730/45 filter captures the peak of the Alexa Fluor 700 emission near 723 nm with minimal spillover.
How bright is Alexa Fluor 700?
Alexa Fluor 700 has a relative brightness of 1 out of 5.
How many antibodies are available conjugated to Alexa Fluor 700?
FluoroFinder tracks 25345 commercially available Alexa Fluor 700 conjugates, searchable by target, clone, host and application.