Eosin Y-derivatives

Eosin Y-derivatives

Eosin-Y-dextran 10 (EYD10) and Eosin-Y-lysine-dextran 500 (EYLD500) are dextran-based derivatives that are labeled with the dye Eosin Y (2-(2,4,5,7-tetrabromo-6-oxido-3-oxo-3H-xanthen-9-yl) benzoate; CAS No: 17372-87-1). These products are manufactured using a special technique created by TdB Labs, which enables a significant level of functionalization.

Derivatives
We offer the following products; Eosin-Y-dextran 10 (EYD10) and Eosin-Y-lysine-dextran 500 (EYLD500).

Spectral data
Both EYD10 (excitation max. at λ=532 nm and fluorescence max. at λ=555 nm in water) and EYLD500 (excitation max. at λ=530 nm and fluorescence max. at λ=548 nm in water) exhibit strong orange fluorescence.

Applications
Both our Eosin-Y-derivatives; EYD10 and EYLD500 are sensitive to pH due to the presence of Eosin Y, a tetrabrominated derivative of fluorescein that exhibits a similar dependency on pH like its parent compound, where the decrease in fluorescence is observed when the pH decreases from 9 to 1. EYLD10 and EYLD500 could thus be highly useful for the development of pH probes and generally environment-responsive biosensors and potentially diagnostic systems.

 

Eosin Y dextran 10-white background-shadow

Eosin-Y-dextran 10

Eosin-Y-dextran 10 (EYD10) is a dextran derivative that is labelled with the Eosin Y dye and it is currently produced at a molecular weight of 10kDa.

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Eosin Y lysine dextran 500-white background-with shadow

Eosin-Y-lysine-dextran 500

Eosin-Y-lysine-dextran 500 (EYLD500) is a dextran derivative that is labelled with the Eosin Y dye and it is currently produced at a molecular weight of 500kDa.

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