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Mix-n-Stain CF 647 Antibody Labeling Kit (5-20μg)

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storage condition

protect from light


λex 650 nm; λem 665 nm

storage temp.


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General description

This labeling kit is for labeling 5-20 μg antibody with the far red fluorescent dye CF647. Mix-n-Stain CF dye antibody labeling kits are a revolutionary antibody labeling technology that permits one to label antibodies with our superior CF dyes in 30 minutes without a purification step. The labeling procedure tolerates many common buffer components and antibody stabilizers. CF647 is far-red fluorescent dye and one of an outstanding series of CF dyes. CF647 is spectrally similar to Alexa Fluor 647 and Cy®5 dyes. CF dyes are superior to Alexa Fluor dyes and Cy®dyes for antibody labeling by having combined advantages in brightness, photostability, specificity and novel features ideal for in vivo imaging.


The Mix-n-Stain CF dye antibody labeling kit can be used to label primary antibody for ELISA, western blot, immunohistochemistry, flow cytometry, immunofluorescence or immunocytochemistry applications.

Features and Benefits

Mix-n-Stain CF dye antibody labeling kits dramatically simplify the process of preparing fluorescently labeled antibodies, particularly primary antibodies. Simply mix your antibody with a CF dye of your choice in the buffer provided, a step that takes less than 30 seconds of hands-on time. After waiting for another 30 minutes, without a separation step, you will have a fluorescent antibody conjugate that is as good as the best pre-labeled fluorescent antibody you can buy from some of the leading suppliers. There is no need to calculate how much dye you should use; just mix your antibody with the entire amount of dye provided and you will always produce optimal labeling. Moreover, the labeling reaction can tolerate the presence of common stabilizers, such as sodium azide, Tris, glycerol and low level of BSA.


The kit consists of 1 vial each of Mix-n-Stain Dye, Mix-n-Stain Reaction Buffer (10x), Mix-n-Stain Storage Buffer, and an ultrafiltration vial.

Analysis Note

Direct replacement for: Alexa Fluor 647, Cy®5, DyLight® 647, DyLight® 649, IRDye® 650

Legal Information

This product is distributed by Sigma-Aldrich Co. under the authorization of Biotium, Inc. This product is covered by one or more US patents and corresponding patent claims outside the US patents or pending applications owned or licensed by Biotium, Inc. including without limitation: 12/334,387; 12/607,915; 12/699,778; 12/850,578; 61/454,484. In consideration of the purchase price paid by the buyer, the buyer is hereby granted a limited, non-exclusive, non-transferable license to use only the purchased amount of the product solely for the buyer′s own internal research in a manner consistent with the accompanying product literature. Except as expressly granted herein, the sale of this product does not grant to or convey upon the buyer any license, expressly, by implication or estoppel, under any patent right or other intellectual property right of Biotium, Inc. Buyer shall not resell or transfer this product to any third party, or use the product for any commercial purposes, including without limitation, any diagnostic, therapeutic or prophylactic uses. This product is for research use only. Any other uses, including diagnostic uses, require a separate license from Biotium, Inc. For information on purchasing a license to use this product for purposes other than research, contact Biotium, Inc., 3159 Corporate Place, Hayward, CA 94545, Tel: (510) 265-1027. Fax: (510) 265-1352. Email:
ALEXA FLUOR is a trademark of Life Technologies
CF is a trademark of Biotium, Inc.
Cy is a registered trademark of Cytiva
DyLight is a registered trademark of Pierce Biotechnology, Inc.
IRDye is a registered trademark of LI-COR, Inc.
Mix-n-Stain is a trademark of Biotium, Inc.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.



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Hazard Statements

Precautionary Statements

Hazard Classifications

Aquatic Chronic 3 - Met. Corr. 1

Storage Class Code

8A - Combustible, corrosive hazardous materials



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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