Proteins & Antibodies (Premium Research-Grade Reagents)

(169 products)

Get the most trusted proteins and antibodies for your lab, delivered fast and ready for immediate use. At Astor Scientific, we offer high-purity, performance-tested reagents built for precision and consistency across every application.

From recombinant proteins to monoclonal and polyclonal antibodies, each product in our collection is manufactured to meet the highest scientific standards. Whether you're ready to buy proteins for functional assays or need antibodies for sale to support diagnostics or research, you'll find what you need—backed by documentation, reliability, and fast U.S. shipping.

Browse our full range below and place your order with confidence.

Discover High-Quality Proteins & Antibodies for Research

Achieve consistent results with premium proteins and antibodies trusted by labs worldwide. Our collection is engineered for purity, bioactivity, and batch-to-batch consistency—ideal for applications like ELISA, Western blotting, immunostaining, and cell-based assays.

Whether you’re running large-scale studies or small diagnostic workflows, you can confidently buy proteins and antibodies for sale from our ready-to-ship inventory, fully supported with COAs and validation data.

Why Choose Our Proteins & Antibodies

At Astor Scientific, we go beyond just supplying reagents — we deliver quality you can trust in every drop. Our proteins and antibodies are developed with a strong focus on purity, consistency, and scientific reliability. Whether you’re running diagnostic tests or advanced cell-based assays, our reagents are built to perform across applications like ELISA, Western blot, immunostaining, and flow cytometry.

Here’s what makes our collection the preferred choice for top labs:

High-Purity Standards: Each product is rigorously filtered and QC-tested to ensure maximum bioactivity and consistency.
Ready-to-Use Validation: Antibodies and proteins are performance-tested for major lab protocols.
Full Documentation: Includes Certificates of Analysis (COA), Safety Data Sheets (SDS), and application support files.
Flexible Sizing: Purchase in trial or bulk quantities to match your lab's workflow and budget.
Expert Support: Our team helps you select the right reagent and offers technical assistance when you need it.

Whether you're looking to buy proteins for functional studies or searching for antibodies for sale to enhance your detection accuracy, we provide the quality and support your research deserves.

Proteins Collection

Find the right protein for your research with our streamlined collection, organized by type and application. Each product is clearly labeled, performance-verified, and available with search filters to help you quickly locate the best match for your workflow.

Growth Factors & Cytokines

Support cell differentiation, proliferation, and signaling studies with high-purity growth factors and cytokines. These proteins are ideal for stem cell culture, immune research, and tissue regeneration workflows.

Recombinant Enzymes

Our selection of recombinant enzymes is engineered for stability and high activity across various lab protocols. From PCR to molecular cloning, these proteins deliver precision where it matters most.

His‑Tagged & Fusion Proteins

Simplify purification and detection with our His-tagged and fusion protein options. These proteins are perfect for immunoassays, protein-protein interaction studies, and custom assay development.

Use the on-site filters to narrow results by application, species reactivity, tag type, and storage format, making it easier to buy proteins tailored to your exact needs.

Monoclonal & Polyclonal Collection

Choose from a wide range of monoclonal and polyclonal antibodies designed to deliver specificity, sensitivity, and consistent performance in your lab.

Our monoclonal antibodies are ideal for targeted detection, offering single-epitope binding for greater reproducibility across experiments. Whether you're working on diagnostics, flow cytometry, or immunoassays, these antibodies deliver high-affinity results with minimal background.

For broader recognition and increased signal, our polyclonal antibodies provide strong binding across multiple epitopes. These are perfect for Western blotting, IHC, and general protein detection when sensitivity is key.

Each antibody is:

Validated for use in ELISA, WB, IHC, and more
Available in multiple host species and isotypes
Supplied with COA and application guidance
Backed by our expert support team

Whether you're looking to buy monoclonal antibodies or explore reliable antibodies for sale, our collection is built to serve both routine assays and complex workflows.

How to Find the Right Antibodies?

Choosing the right antibody is critical to getting accurate, reproducible results in your experiments. Our collection is organized to help you select antibodies based on clonality, host species, conjugation, and application, whether you're running ELISA, IHC, Western blotting, or flow cytometry.

What to Consider When Selecting:

Clonality:
- Monoclonal antibodies bind a single epitope for high specificity and reproducibility.
- Polyclonal antibodies bind multiple epitopes, offering a stronger signal but potentially more background.
Host Species: Choose antibodies raised in species compatible with your assay setup (e.g., mouse, rabbit, goat) to reduce cross-reactivity.
Conjugation: Decide whether you need labeled antibodies (e.g., HRP, FITC, Alexa Fluor) for detection methods or unconjugated options for more flexibility.
Application-Specific Use: All our antibodies are clearly tagged for use in WB, ELISA, IHC, IF, and more, with performance data included.

Monoclonal vs. Polyclonal: Which Should You Choose?

Understanding the difference between monoclonal and polyclonal antibodies can help you select the right tool for your experiment. The best choice depends on your application, required specificity, and desired signal strength. Below is a detailed comparison to guide your decision:

Feature	Monoclonal Antibodies	Polyclonal Antibodies
Epitope Recognition	Binds to a single, specific epitope on the antigen	Recognizes multiple epitopes on the same antigen
Specificity	High – reduces background noise and off-target binding	Moderate – more prone to non-specific binding
Signal Strength	Typically lower due to single binding site	Stronger due to multiple binding interactions
Batch-to-Batch Consistency	Excellent – derived from a single clone, ensuring uniform performance	Moderate – produced from different animals, so slight variation is possible
Reproducibility	Ideal for long-term projects requiring consistent results	Can vary slightly but suitable for general detection
Application Fit	Best for ELISA, flow cytometry, therapeutic development, and target validation	Preferred for Western blotting, IHC, and early-stage research
Production Method	Derived from a single B-cell clone	Harvested from the serum of immunized animals
Cost	Typically more expensive due to complex development	Usually less expensive and quicker to produce
Recommended Use	When precision and repeatability are key	When sensitivity and stronger signal are more important

Whether you're aiming for clean, reproducible signals in clinical assays or need broader detection for screening, Astor Scientific offers both monoclonal and polyclonal antibodies to meet your exact research needs. Each product is validated and documented to ensure confidence in your results.

Applications & Protocol Support

Our proteins and antibodies are built to perform across a wide range of laboratory applications. Each product is backed by validation data, optimized protocols, and technical support, so you can focus on results, not troubleshooting.

We support research in:

Cell Biology: Reliable results for flow cytometry, immunofluorescence (IF), and immunohistochemistry (IHC). Our antibodies are tested for high signal-to-noise performance in cellular imaging and detection.
Protein Assays: Ideal for Western blot and ELISA workflows, our products are optimized for high-affinity binding, minimal background, and clean signal detection.
Functional Studies: Use our proteins and antibodies for neutralization assays, immunoprecipitation (IP), and other function-based experiments with confidence in purity and bioactivity.

Need help with protocols? Explore trusted resources from leaders like Abcam’s antibody protocols to ensure correct usage, or contact our team directly for personalized support.

Get dependable results. Buy proteins and antibodies designed for your exact application.

FAQs

What’s the difference between monoclonal and polyclonal antibodies?

Monoclonal antibodies target a single epitope with high specificity, ideal for consistent results. Polyclonal antibodies recognize multiple epitopes and are preferred when a stronger signal is needed.

Can I use your antibodies for ELISA, IHC, or Western blot?

Yes. Each antibody includes application validation details. Many are tested for ELISA, IHC, WB, IF, and more.

Are your proteins bioactive and ready for functional use?

Absolutely. Our proteins are purity-verified and tested for bioactivity where applicable, making them suitable for functional assays, neutralization, and binding studies.

How do I choose the right conjugation or host species?

Use our filter options to refine by host, clonality, conjugate type, and application — or contact us for expert support.

Ready to Buy Proteins & Antibodies?

Browse our complete range of high-purity proteins and performance-validated antibodies, trusted by researchers for their reliability and reproducibility. Whether you're scaling up assays or sourcing a hard-to-find target, we deliver products designed to meet your scientific standards.