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New products in May 2017


We now have over 560 different Alexa Fluor secondary antibody conjugates.



Brightest dyes         

The fluorescence intensity of Alexa Fluor dyes outperform other spectrally similar dyes

Greater photostability

Increased photostability allows for longer periods of image capture

pH insensitivity

Alexa Fluor fluorescence intensity remains high over a broad pH range

Good water solubility

Good water solubility prevents the precipitation and aggregation of Alexa Fluor conjugated antibodies



In house manufacturing within our laboratories guarantees consistency and quality.

Alexa Fluor conjugates ensure you make the most of your money by providing lower optimal working dilutions.

The wavelength at which Alexa Fluor conjugates absorb matches the most common operational wavelengths of excitation sources.



We currently offer 13 Alexa Fluor dyes covering the whole of the spectrum from the UV to the far infrared.

The Alexa Fluor dyes have been conjugated to a large number of secondary antibodies raised in different species including goat, mouse and rabbit.

A large number within the range are pre-adsorbed ensuring low species cross reactivity - thus ideal for multi-color analysis.


Our Alexa Fluor conjugated secondary antibodies have been tested in a wide range of applications including immunofluorescence/immunocytochemistry (IF/ICC), flow-cytometry, and fluorescent western blot.


100% Quality Guarantee

Cohesion Biosciences provide a 100% quality guarantee for all products in our catalog. Guarantee covers only the tested applications and species stated on Cohesion Biosciences website.

Cohesion Biosciences protocols are available online for your reference.
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