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Fluorescent dye probes, or fluorophores, are compounds that absorb light at a given wavelength and emit light at a higher wavelength, producing fluorescence in various colors. These dyes can be grouped into categories such as organic dyes (e.g., fluorescein, rhodamine, AMCA), biological fluorophores (e.g., green fluorescent protein, phycoerythrin, allophycocyanin) and quantum dots.
Fluorescent probes absorb light at a specific wavelength and emit light of a different, typically longer, wavelength. This process is known as fluorescence emission. Fluorescence is safer to use and does not require radiological controls. Because fluorophores do not overlap, several fluorescent molecules can be used simultaneously.
Fluorescent dyes are often used in the fluorescent labeling of biomolecules and can be smaller or more photostable than fluorescent proteins but cannot be genetically encoded.

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Top 10 selling High purity Fluorescent Dye
Cat# Name Structure M.W. Purity Pricing
AP10627APDye 488 NHS ester (Alexa Fluor® 488 NHS equivalent)833.93≥95% Pricing
AP12695Cy5 DBCO1009.22≥95% Pricing
AP106255-TAMRA NHS Ester527.53≥95% Pricing
AP107025-TAMRA cadaverine TFA salt627.24≥95% Pricing
AP12642APDye 488 Biotin935.00 (protonated)≥95% Pricing
AP12683APDye 680 Azide Plus1048.69≥95% Pricing
AP12639CalFluor 555 Azide891.09≥95% Pricing
AP12632APDye 488 Tetrazine703.66≥95% Pricing
AP12633APDye 568 Tetrazine863.92 (protonated)≥95% Pricing
AP12514Difluorocarboxyfluorescein Cadaverine, 5-isomer496.46≥95% Pricing

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