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Video footage: Acetaldehyde (ethanal) molecule, chemical structure. Acetaldehyde is a toxic molecule responsible for many symptoms of alcohol hangover. Atoms are represented as spheres with conventional color coding
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Definition of the noun acetaldehyde

What does acetaldehyde mean as a name of something?

noun - plural: acetaldehydes

  1. a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs
    • lexical domain: Substances - nouns denoting substances
    • synonym of acetaldehyde: ethanal
    • more generic word: aldehyde = any of a class of highly reactive chemical compounds

Alternative definition of the noun acetaldehyde


  1. [organic compound] An organic compound (CH3CHO). Sometimes called ethanal or acetic aldehyde. See aldehyde.


Acetaldehyde is an organic chemical compound with the formula CH₃CHO, sometimes abbreviated by chemists as MeCHO. It is one of the most important aldehydes, occurring widely in nature and being produced on a large scale in industry. Acetaldehyde occurs naturally in coffee, bread, and ripe fruit, and is produced by plants. It is also produced by the partial oxidation of ethanol by the liver enzyme alcohol dehydrogenase and may be a contributing factor to hangovers from alcohol consumption. Pathways of exposure include air, water, land, or groundwater, as well as drink and smoke. Consumption of disulfiram inhibits acetaldehyde dehydrogenase, the enzyme responsible for the metabolism of acetaldehyde, thereby causing it to build up in the body.

  • also known as acetic aldehyde, ethanal, aldehyde, ethyl aldehyde

Printed dictionaries and other books with definitions for acetaldehyde

Click on a title to look inside that book (if available):

Google previewHandbook On Chemical Industries (Alcohol Based) (2002)

by H. Panda

Acetaldehyde is an important intermediate in the production of acetic acid, acetic anhydride, ethyl acetate, peracetic acid, pentaerythritol, chlorial, glyoxal,

Acetaldehyde is a normal intermediate product in the respiration of higher plants.

Google previewAcetaldehyde-Related Pathology (2007)

Bridging the Trans-Disciplinary Divide by Novartis Foundation

Acetaldehyde is an appealingly simple small molecule that is pretty reactive in vitro, and has some fairly serious effects in vivo in a variety...

Google previewFood Authenticity and Traceability (2003)

by M Lees

Acetaldehyde is a product of metabolic processes, e.g., an intermediate in alcoholic fermentation. (Its content indicates the...

On the other hand, acetaldehyde is the most common aldehyde found in dairy products (yoghurt, cheese, etc.) and is ...

Google previewAlcohol in Health and Disease (2001)

by Dharam Agarwal, Helmut K. Seitz

ACETALDEHYDE METABOLISM Acetaldehyde is a colorless, volatile liquid that is readily soluble in water and many organic solvents (1). Acetaldehyde is an intermediate in several biological processes ...

Google previewChemical Mutagens Environmental Effects on Biological Systems (2012)

by L Fishbein

Acetaldehyde is an intermediate product in the metabolism of sugars in the body and hence occurs in traces in blood.

Acetaldehyde is a highly reactive compound exhibiting the general reactions of aldehydes (e.g., under suitable conditions ...

Google previewAtkins' Molecules (2003)

by Peter William Atkins

Acetaldehyde is a volatile component of cotton leaves and blossoms, is found in oak and tobacco leaves and is a natural component of many ripe fruits. It also contributes to odours of rosemary, daffodil, bitter orange, camphor, angelica, fennel, ...

Google previewAlcohol (2013)

by Norman S. Miller, Mark S. Gold

Acetaldehyde is a noxious chemical that when injected into humans produces a violent, nauseating reaction that resembles a severe hangover. In fact, acetaldehyde is the best single explanation we have for the hangover. Acetaldehyde is ...

Google previewThe Oxford Companion to Beer (2011)

Stewart acetaldehyde is an organic compound found in almost all plant materials and the most common of the aromatic chemical...

Google previewPathology (2014)

Implications for the Physical Therapist by Catherine C. Goodman, Kenda S. Fuller

Acetaldehyde is an intermediate product in the metabolism of alcohol. Typically, alcohol is converted to acetaldehyde by...

Acetaldehyde is a reactive molecule and is able to modify proteins. These altered proteins are then not only unable to ...

Google previewUniversity Bulletin (1978)

A Weekly Bulletin for the Staff of the University of California by University of California (System)

"Acetaldehyde is the first breakdown product of alcohol," Schuckit explained. " When alcohol enters...

Google previewEighth Annual Report on Carcinogens (1999)

by Barry Leonard

Acetaldehyde is a GRAS (generally recognized as safe) compound for the intended use as a flavoring agent and adjuvant...

Acetaldehyde is the product of most hydrocarbon oxidations and is a normal intermediate in the respiration of most ...

Google previewDisorders of Lipid Metabolism (2012)

by G.V. Marinetti

Acetaldehyde is a direct vasodilator in the heart. It has a stronger action in stimulating the release of norepinephrine at adrenergic nerve terminals, which leads to vasoconstriction and increased blood pressure. This in turn leads to ...

Google previewHandbook of Odors in Plastic Materials (2013)

by George Wypych

Acetaldehyde is a common degradation product of poly(ethylene terephthalate) formed during the melt condensation reaction and melt processing of PET.9 Acetalaldehyde migrates to food from PET packaging.9 Butylated hydroxytoluene , ...

Google previewEssentials of Organic Chemistry (2013)

For Students of Pharmacy, Medicinal Chemistry and Biological Chemistry by Paul M. Dewick

This is because acetaldehyde is a weak acid (pKa 17), a weaker acid in fact than water ( pKa 15.7).

Google previewHandbook of Drug Interactions (2003)

A Clinical and Forensic Guide by Ashraf Mozayani, Lionel Raymon

Acetaldehyde is the proximate metabolite of ethanol by all known pathways (172). Unlike ethanol, the aldehyde group (-CHO) is a highly reactive chemical entity that can bind to proteins as well as many ...

Google previewGastric Cancer: New Insights for the Healthcare Professional: 2012 Edition (2012)

Acetaldehyde is the key intermediate in alcoholic fermentation and ethanol oxidation. Therefore, it is widely present in our environment. Furthermore, it is the most abundant carcinogenic compound of tobacco smoke. Most of the known risk ...

Google previewOral Cancer: New Insights for the Healthcare Professional: 2012 Edition (2012)


use has been implicated in the induction of CYP2E1, which oxidizes ethanol to acetaldehyde. Acetaldehyde is a known carcinogen. As the first metabolite of ethanol, it has been shown to interfere with DNA methylation, synthesis and repair, ...

Google previewEncyclopedia of Toxicology (2005)

by Bruce Anderson, Ann de Peyster, Shayne C. Gad, P.J. Bert Hakkinen, Michael Kamrin, Betty Locey, Harihara M. Mehendale, Carey Pope, Lee Shugart

Industrial exposures to acetaldehyde are most likely to occur by inhalation with potential for skin and eye contact. Accidental ingestion isalso possible. Acetaldehyde is produced from themetabolism of ethanolin the body. Toxicokinetics ...

Google previewA Consumer's Dictionary of Food Additives, 7th Edition (2009)

Descriptions in Plain English of More Than 12,000 Ingredients Both Harmful and Desirable Found in Foods by Ruth Winter

ACETIC ACID, CITRONELLYL ESTER 55 Acetaldehyde is thought to be a factor in the toxic effect caused by drinking alcohol after taking the anlialcohol drug Antabuse. Inhalation is usually limited by intense irritation of lungs. Ingestion of large ...

Google previewBotany (Collins Internet-Linked Dictionary of) (2017)

by Jill Bailey

into acetaldehyde ( ethanal). The ability of a plant's roots to produce alcohol dehydrogenase is a ...

Google previewEncyclopedia of Dairy Sciences (2011)

Acetaldehyde. Quantitatively, acetate is the major end product of citrate metabolism. From every molecule of citrate converted, one molecule of acetate is formed through direct cleavage. During milk fermentation, approximately 10 mmol l1 ...

Google previewEncyclopedia of Electrochemical Power Sources (2013)

by Jürgen Garche, Chris K. Dyer, Patrick T. Moseley, Zempachi Ogumi, David A. J. Rand, Bruno Scrosati

acetaldehyde, which requires only the transfer of two electrons per ethanol molecule. Acetaldehyde has to readsorb to complete its oxidation into either acetic acid or carbon dioxide with methane production at low potentials (Eo0.2V vs ...

Google previewEncyclopedia of Cancer (2011)

by Manfred Schwab

Acetaldehyde binds to proteins and DNA; it has been found to be mutagenic and carcinogenic in animal experiments. The most convincing evidence for the role of acetaldehyde as cancer—causing agent comes from genetic linkage studies in ...

Google previewEncyclopedia of Substance Abuse Prevention, Treatment, and Recovery (2009)

by Gary L. Fisher, Nancy A. Roget

When an individual drinks under normal circumstances, the liver breaks the alcohol down from alcohol dehydrogenase to acetaldehyde, and after that, the acetaldehyde is altered to acetaldehyde dehydrogenase, a relatively harmless acetic ...

Google previewEncyclopedia of Psychopharmacology (2010)

by Ian Stolerman

Drugs 53:1038–1053 Acetaldehyde Synonyms ADH; Ethanal Definition Acetaldehyde is an intermediate by-product in normal carbohydrate metabolism. It is known to psychopharmacologists as the first metabolite of alcohol that is eliminated ...

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Video about acetaldehyde

Acetaldehyde Meaning

Video shows what acetaldehyde means. An organic compound (CH3CHO). Sometimes called ethanal or acetic aldehyde. See aldehyde.. acetaldehyde ...

See also the pronunciation examples of acetaldehyde!

Scrabble value of A1C3E1T1A1L1D2E1H4Y4D2E1

The value of this 12-letter word is 22 points, but it's not an accepted word in the Official Scrabble Players Dictionary.

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