Title: catalytic activity
Long Title: IUPAC Gold Book - catalytic activity
DOI: 10.1351/goldbook.C00881
Status: current

Definition
Increase in the rate of reaction of a specified chemical reaction that an enzyme produces in a specific assay system.

Related Terms
- assay: https://goldbook.iupac.org/terms/view/A00470
- rate of reaction: https://goldbook.iupac.org/terms/view/R05156

Sources
- PAC, 1994, 66, 2587. 'Glossary of bioanalytical nomenclature - Part 1: General terminology, body fluids, enzymology, immunology (IUPAC Recommendations 1994)' on page 2593 (https://doi.org/10.1351/pac199466122587)
- PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 964 (https://doi.org/10.1351/pac199668040957)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/C00881/html
- json: https://goldbook.iupac.org/terms/view/C00881/json
- xml: https://goldbook.iupac.org/terms/view/C00881/xml

Citation: Citation: 'catalytic activity' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.C00881
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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.
Accessed: 2026-05-14T19:51:00+00:00