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CF647ST

CF®647ST (Ex-Max 650 nm/Em-Max 665 nm)

CF®647ST from Biotium is a fluorophore with an excitation peak at 650 nm and an emission peak at 665 nm. It can be useful in both fluorescence microscopy and flow cytometry. It is spectrally similar to Alexa Fluor™ 647, DyLight™ 649 and Cy5.

Excitation & emission spectra

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Key facts

Excitation maximum
650 nm
Emission maximum
665 nm
Optimal laser line
628-640
Optimal filter
660/20
Relative brightness
4 of 5

CF647ST has an excitation maximum at 650 nm and an emission maximum at 665 nm, a Stokes shift of 15 nm. It is optimally excited by the 628-640 laser line.

Frequently asked questions

What is CF647ST?
CF®647ST from Biotium is a fluorophore with an excitation peak at 650 nm and an emission peak at 665 nm. It can be useful in both fluorescence microscopy and flow cytometry. It is spectrally similar to Alexa Fluor™ 647, DyLight™ 649 and Cy5.
What laser excites CF647ST?
CF647ST is optimally excited by the 628-640 laser line. Its excitation maximum is 650 nm.
What filter should I use to detect CF647ST?
A 660/20 filter captures the peak of the CF647ST emission near 665 nm with minimal spillover.
How bright is CF647ST?
CF647ST has a relative brightness of 4 out of 5.