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Fluorescent Dyes, or fluorophores, Fluorescent Probes & Stains,  are compounds that absorb light at a given wavelength and emit light at a higher wavelength, producing fluorescence. These fluorescent 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. They are often used in the fluorescent labeling of biomolecules. They are smaller and more photostable than fluorescent proteins.

AxisPharm offers a full spectrum of ready-to-conjugate dyes to researchers for their biomolecule conjugation and applications.

Our Fluorescent dyes are furnished with a wide range of reactive functional groups, such as succinimidyl ester (SE/NHS ester), maleimides, free acids, and click chemistry handles. We offer one of the most comprehensive collections of copper-free bioorthogonal click chemistry tools, such as azide, alkyne, TCO, tetrazine, BCN, and DBCOs.

PEG Applications


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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