Products > Applications > Cell Biology > Antibodies, strepavidin and lectins > CF Dye labeled Secondary Antibody Conjugates

CF™620R Dye

A far-red dye excellent for FRET and other applications

CF™620R dye is a far-red rhodamine-based fluorescent dye. The dye is highly fluorescent and extremely photostable. With its absorption and emission maxima centered at 617 and 639 nm, respectively, the dye may be used as an excellent energy acceptor in fluorescence resonance energy transfer (FRET), or used in multi-color detection applications where the excitation and emission windows can be matched with the spectral profiles of the dye for maximal fluorescence collection. The exceptional water solubility of the dye facilitates bioconjugation in aqueous media and better retain the biological specificity of the conjugates.

Two reactive forms of CF™620R dye are currently available (Table 1). The succinimidyl ester dye is for labeling amino molecules while the maleimide dye is for labeling molecules with a thiol group.

Technical Summary Abs/Em Maxima: 617/639 nm Extinction coefficient: 115,000 Molecular weight: 738 Direct replacement for: LightCycler® Red 640 (LC640)   Advantages Highly water-soluble Highly fluorescent Extremely photostable
	Figure 1. Absorption and emission spectra of CF™620R dye in PBS.

 

Table A. CF620R Dye-labeled Secondary Antibody Conjugates

Cat#

Product Name

Unit Size

Unit Price

Table B. Other CF620R dye-labeled Products

Cat#

Product Name

Unit Size

Unit Price

Table C. Reactive CF620R Dyes and Labeling Kits

Cat#	Product Name	Unit Size	Unit Price
92033	CF620R maleimide	1 umole	$205
92106	CF620R succinimidyl ester	1 umole	$225

**Price is for US enduser only. International price may vary. Please contact your local distributors for your price.