Whether you're looking for directly conjugated antibodies or conjugation-ready options, CST offers the flexibility you need to match your specific platform and labeling requirements. Our antibodies deliver accurate, specific, and reproducible results, backed by unparalleled technical support. We also provide custom services and on-demand solutions to save you time and money, helping you avoid the pitfalls of do-it-yourself (DIY) kits and ensuring higher success and reproducibility.
Confidently advance your research projects with the CST® antibodies you trust, available in a range of formats to seamlessly integrate with your experimental needs.
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Off-the-Shelf Conjugated Antibodies:
High-quality, application-validated conjugates: Performance confirmed for every lot in approved applications according to rigorous CST standards—with optimal dilution ranges and proven protocols
Shipping: Ready to ship to you within a day—straight from our inventory.
High-quality, fluorochrome conjugates on demand: Find the antibody you want conjugated to the right dye for your panel—choose from our broad range of fluorochrome-antibody combinations.
Shipping: Ready to ship in 10 days or less.
High-quality, customized conjugates: Made to order according to your experimental specifications—you choose the label, formulation, and concentration.
Available labels: Fluorophores, Biotin, Europium, HRP, Beads, Oligo/Barcodes (including for Akoya PhenoCycler and 10x Genomics Feature Barcodes), and more.
BSA- and Azide-Free Antibodies:
Carrier-free catalog: Over 1,600 antibodies are ready to ship in BSA-, glycerol-, and azide-free formulations (>1 mg/ml)—ready for the platform flexibility you need.
Custom orders: Over 90% of our antibodies can be prepared carrier-free upon request.
Alexa Fluor conjugated antibodies are designed for researchers who demand unparalleled brightness, photostability, and specificity. These fluorophores excel in experiments requiring simultaneous detection of multiple targets, offering a broad spectral range and minimal spectral overlap. Whether you're working with high-content imaging or flow cytometry, Alexa Fluor antibody conjugates deliver sharp, reliable results every time.
Why choose Alexa Fluor for your research?
Learn More About These Popular Alexa Fluor Conjugates:
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Alexa Fluor® 405 |
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Alexa Fluor® 568 |
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Our alternative fluorophores antibody conjugates are optimized to meet the rigorous demands of your research. Engineered for compatibility with specific lasers and detection platforms, these conjugates provide reliable performance and integrate seamlessly into complex experimental workflows.
Discover which conjugate is right for you:
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mFluor™ UV375 |
mFluor™ Violet 510 |
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For experiments that require enhanced sensitivity, hapten-conjugated antibodies provide powerful amplification for low-abundance target detection. Biotin is one of the most commonly used haptens, as biotin-avidin/streptavidin systems deliver precise signal amplification in immunohistochemistry, western blotting, and ELISA applications.
Explore hapten-based solutions:
Why do researchers trust biotinylated solutions?
Magnetic and sepharose beads are at the forefront of advanced sample purification and detection techniques. These versatile tools enable efficient separation in high-throughput screens via precise molecular interactions. Magnetic beads leverage superparamagnetic properties for rapid and automated biomolecule isolation, while Sepharose beads offer exceptional affinity-based purification and chromatography applications.
Whether enriching target proteins, capturing nucleic acids, or streamlining immunoprecipitation workflows, bead-based systems provide unparalleled specificity and reproducibility across diverse research and clinical settings.
Learn more about our bead-based solutions:
Enzyme-conjugated antibodies are the cornerstone of reliable detection. They deliver sharp, high-contrast signals through enzymatic reactions that allow chromogenic or chemiluminescent detection. Whether you're visualizing specific proteins in tissue sections, detecting analytes in complex samples, or quantifying target molecules, their robust performance ensures reproducible results across platforms.
Explore enzyme-based antibody conjugates:
Founded and led by active researchers, CST has been at the forefront of antibody development for over two decades. Our deep understanding of biological systems drives innovation, supporting your next breakthrough in oncology, immunology, and personalized medicine.
For Research Use Only. Not for Use in Diagnostic Procedures.
Cell Signaling Technology and CST are trademarks or registered trademarks of Cell Signaling Technology, Inc. Alexa Fluor and Pacific Blue are registered trademarks of Life Technologies Corporation. Cy is a registered trademark of GE Healthcare. Ifluor is a registered trademark of AAT Bioquest, Inc. All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.
