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Acetaldehyde

  • Glossary item | Last updated: 31 Aug 2021

The principal breakdown product of ethanol. Acetaldehyde is formed by oxidation of ethanol, the reaction being catalysed principally by alcohol dehydrogenase. It is itself oxidized to acetate by aldehyde dehydrogenase. Acetaldehyde is a toxic substance, implicated in the alcohol flush reaction and in certain physical sequelae of alcohol consumption and carcinogenic substance.

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