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Western Blot Reagents

Achieve sharper bands, cleaner blots, and reproducible data with protein gel and western blot reagents engineered for precision and performance. From background-blocking buffers to bright, sensitive antibody conjugates, our tools support band visualization and western blot quantitation—with safe, Earth-friendly, and convenient options that simplify your workflow.

Blocking Buffers & Background Quenchers

Minimize non-specific binding and autofluorescence with buffers and quenchers optimized for westerns, cell staining, and other fluorescence assays.

Western Blot Antibodies for Exosomes/EVs

ExoBrite™ Western Antibody Conjugates are validated for isolated EVs, delivering bright, low-background detection of EV markers.

Protein Gel Stains

Visualize proteins with convenient, non-toxic stains that offer high sensitivity, low cost, and minimal steps—including no-fixation, no-washing options.

Protein Markers

Track protein separation and transfer with visible three-color protein markers—offering precise molecular weight reference for SDS-PAGE and western blotting.

HRP & Alkaline Phosphatase Conjugates

Enable sensitive protein detection with HRP, alkaline phosphatase (AP), or CF® Dye-labeled antibodies, including highly cross-adsorbed options for extremely specific staining.

Chromogenic Substrates

Use chromogenic substrates for western blot quantification—detect HRP or AP labels with visible signals that support semi-quantitative protein analysis.

Biotium Choice Antibodies

Rapid and convenient antibody labeling with bright, photostable CF® Dyes and other labels

Biotium Choice Antibodies

Rapid and convenient antibody labeling with bright, photostable CF® Dyes and other labels

Technology Highlight

Built to Beat Background

From background-reducing buffers to bright, stable labels, choose western blot reagents that improve signal quality, precision, and consistency.

  • Over 40 CF® Dyes across the visible, far-red & near-IR spectra—find your best fit
  • Developed in-house by industry-leading chemists, CF® Dyes outshine alternatives
  • Available as antibodies, conjugates, reactive dyes, and easy-to-use labeling kits
  • Supporting IF and super-resolution microscopy, flow cytometry, and more