Date published: 2026-5-17

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Horseradish Peroxidase Inhibitors

Horseradish Peroxidase Inhibitors belong to a specific chemical class characterized by their ability to modulate the activity of horseradish peroxidase (HRP), an enzyme widely used in biochemical research and diagnostic applications due to its strong peroxidase activity. These inhibitors are designed to interact with the active site of HRP, effectively hindering its catalytic function. The active site of HRP contains a heme group, and the inhibitors often target this region to disrupt the enzyme's normal functioning. By binding to the heme group or other crucial regions of HRP, these inhibitors prevent the enzyme from catalyzing the oxidation of various substrates, such as phenols and other organic compounds. Horseradish peroxidase inhibitors play a crucial role in scientific research, especially in assays that require precise control over peroxidase activity. They are invaluable tools in various laboratory applications, including immunoassays, enzyme-linked immunosorbent assays (ELISAs), and molecular biology techniques.

By inhibiting HRP, researchers can effectively control and regulate the production of colored or fluorescent products, enabling the detection and quantification of target molecules in a wide range of biological samples. Due to the versatility and wide utility of horseradish peroxidase as a detection enzyme, the development of potent and selective inhibitors is of significant interest to the scientific community. Researchers continually explore new compounds and structural modifications to optimize HRP inhibition, striving to enhance sensitivity, specificity, and overall assay performance. Beyond their research applications, horseradish peroxidase inhibitors also offer insights into the mechanistic aspects of enzyme inhibition and catalysis. Studying their interactions with HRP sheds light on the intricate biochemical processes involved in enzymatic reactions and informs the design of inhibitors for other peroxidase-like enzymes. Overall, these inhibitors remain pivotal tools for researchers seeking precise and reliable detection methods in the field of biochemistry and molecular biology.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Sodium azide

26628-22-8sc-208393
sc-208393B
sc-208393C
sc-208393D
sc-208393A
25 g
250 g
1 kg
2.5 kg
100 g
$43.00
$155.00
$393.00
$862.00
$90.00
8
(2)

Sodium azide is a common HRP inhibitor that acts as a reversible inhibitor by binding to the active site of the enzyme, preventing substrate binding.

Caffeic Acid

331-39-5sc-200499
sc-200499A
1 g
5 g
$32.00
$62.00
1
(2)

Caffeic acid is a natural compound found in plants and acts as a reversible inhibitor of HRP by binding to the active site.

Hydrogen Peroxide

7722-84-1sc-203336
sc-203336A
sc-203336B
100 ml
500 ml
3.8 L
$31.00
$61.00
$95.00
28
(1)

Surprisingly, low concentrations of hydrogen peroxide can inhibit HRP by oxidizing the enzyme's active site, rendering it inactive.

Sodium Fluoride

7681-49-4sc-24988A
sc-24988
sc-24988B
5 g
100 g
500 g
$40.00
$46.00
$100.00
26
(4)

Sodium fluoride is a reversible inhibitor of HRP and works by interacting with the enzyme's metal cofactor, causing conformational changes.