Term: catalase
https://doi.org/10.1351/goldbook.CT06762

Definition:
A hemeprotein which catalyses the disproportionation of dihydrogen peroxide to O2, and water; it also catalyses the oxidation of other compounds, such as ethanol, by dihydrogen peroxide.

Note: A non-hemeprotein containing a dinuclear managanese @CT06769@ with catalase activity is often called pseudocatalase.

Related Terms:
1) disproportionation (http://doi.org/10.1351/goldbook.D01799).
2) oxidation (http://doi.org/10.1351/goldbook.O04362).
3) cluster (http://doi.org/10.1351/goldbook.CT06769).

Source: PAC, 1997, 69, 1251. 'Glossary of terms used in bioinorganic chemistry (IUPAC Recommendations 1997)' on page 1262 (https://doi.org/10.1351/pac199769061251)

Citation: 'catalase' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.CT06762

License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms.

Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.