Enzyme Labeling Reagents for Proteins

Horseradish peroxidase (HRP), alkaline phosphatase (AP) and other substrate enzymes in purified, activated and kit formats for easy conjugation to proteins and preparation of antibody conjugates for immunoassay procedures.

We use a variety of specialized technologies to manufacture and purify our high-quality peroxidase conjugates. We've adapted several of these technologies as convenient kits and ready-to-use reagents for use in preparing conjugates of your choosing.

Learn more:
Protein Labeling Methods »
Chemistry of Protein Labeling »
Enzyme Probes for Protein Detection »

MultiVision Polymer Detection System: anti-Mouse-AP and anti-Rabbit-HRP

Thermo Scientific* MultiVision Polymer Detection System is a simple and robust one-step polymer detection system for visualization of two antigens simultaneously in blue and red.

MultiVision Polymer Detection System: anti-Mouse-HRP and anti-Rabbit-AP

Thermo Scientific* MultiVision Polymer Detection System is a simple and robust one-step polymer detection system for visualization of two antigens simultaneously in blue and red.

Pierce* Activated HRP and Antibody Labeling Kit

Thermo Scientific* Pierce Activated HRP and Antibody Labeling Kit contains horseradish peroxidase enzyme that has been glutaraldehyde-activated to enable labeling and preparation of antibody conjugates.

Pierce* Alkaline Phosphatase (AP)

Thermo Scientific* Pierce Alkaline Phosphatase is purified calf-intestinal alkaline phosphatase (AP or alk-phos) enzyme for use in activity assays and conjugation to antibodies for ELISA and immunohistochemistry applications.

Pierce* Conjugate Purification Kit

Thermo Scientific* Pierce Conjugate Purification Kit is a unique affinity chromatography system for purifying horseradish peroxidase (HRP) or alkaline phosphatase (AP) conjugated antibodies from unreacted enzyme after labeling.

Pierce* Ethylene Glycol Solution

Thermo Scientific Pierce Ethylene Glycol Solution provides exceptional antifreeze protection and storage stability for antibody-enzyme conjugates because it is purified to remove impurities commonly found traditional glycerol stocks.

Pierce* Guardian* Peroxidase Conjugate Stabilizer/Diluent

Thermo Scientific* Guardian Peroxidase Conjugate Stabilizer/Diluent preserves diluted (1-1,000ng/mL) HRP conjugates for more than six months at room temperature without significant loss of activity.

Pierce* Horseradish Peroxidase (HRP)

Thermo Scientific* Pierce Horseradish Peroxidase (HRP) is purified horseradish peroxidase enzyme for use in activity assays and conjugation to antibodies for ELISA, Western blotting and immunohistochemistry applications.

Pierce* Maleimide-Activated HRP Conjugation Kit

Thermo Scientific* Pierce Maleimide-Activated HRP Conjugation Kit can be used to directly prepare HRP conjugates from proteins, peptides or other ligands that contain sulfhydryl groups, such as reduced cysteines.

Pierce* Peroxidase Conjugate Stabilizer

Thermo Scientific* Pierce Peroxidase Conjugate Stabilizer is an antifreeze solution for storing aliquots and stocks of antibodies and other HRP-conjugates so they can be pipetted for use without thawing.

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