Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Yverify (what is YN ?)
Infobox references
Chemical compound
Acetaldehyde (IUPAC systematic name ethanal) is an organic chemical compound with the formula CH3 CHO, sometimes abbreviated as MeCHO. It is a colorless liquid or gas, boiling near room temperature. 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,[11] and is produced by plants. It is also produced by the partial oxidation of ethanol by the liver enzyme alcohol dehydrogenase and is a contributing cause of hangover after alcohol consumption. Pathways of exposure include air, water, land, or groundwater, as well as drink and smoke.[12] Consumption of disulfiram inhibits acetaldehyde dehydrogenase, the enzyme responsible for the metabolism of acetaldehyde, thereby causing it to build up in the body.
The International Agency for Research on Cancer (IARC) has listed acetaldehyde as a Group 1 carcinogen.[13] Acetaldehyde is "one of the most frequently found air toxins with cancer risk greater than one in a million".[14]
^SciFinderScholar (accessed 4 November 2009). Acetaldehyde (75-07-0) Substance Detail.
^Molecular Pathology and Diagnostics of Cancer p. 190
^ abNomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 908. doi:10.1039/9781849733069-00648. ISBN 978-0-85404-182-4.
^ abStoffdaten Acetaldehyd bei Celanese Chemicals. Archived 17 May 2008 at the Wayback Machine as of December 1999.
^ abcdNIOSH Pocket Guide to Chemical Hazards. "#0001". National Institute for Occupational Safety and Health (NIOSH).
^Haynes, William M., ed. (2016). CRC Handbook of Chemistry and Physics (97th ed.). CRC Press. pp. 5–88. ISBN 9781498754293.
^"Acetaldehyde".
^John Rumble (18 June 2018). CRC Handbook of Chemistry and Physics (99th ed.). CRC Press. pp. 5–3. ISBN 978-1138561632.
^ abcSigma-Aldrich Co., Acetaldehyde. Retrieved on 2022-02-15.
^ abc"Acetaldehyde". NIOSH. 4 December 2014. Retrieved 12 February 2015.
^Uebelacker, Michael; Lachenmeier, Dirk (13 June 2011). "Quantitative Determination of Acetaldehyde in Foods Using Automated Digestion with Simulated Gastric Fluid Followed by Headspace Gas Chromatography". Journal of Automated Methods and Management in Chemistry. 2011: 907317. doi:10.1155/2011/907317. PMC 3124883. PMID 21747735.
^"Chemicals in the Environment: Acetaldehyde (CAS NO. 75-07-0)". epa.gov. Office of Pollution Prevention and Toxics, United States Environmental Protection Agency. August 1994. Archived from the original on 17 August 2002. Retrieved 22 January 2011.
^List of IARC Group 1 carcinogens
^Zhou, Ying; Li, Chaoyang; Huijbregts, Mark A. J.; Mumtaz, M. Moiz (7 October 2015). "Carcinogenic Air Toxics Exposure and Their Cancer-Related Health Impacts in the United States". PLOS ONE. 10 (10): e0140013. Bibcode:2015PLoSO..1040013Z. doi:10.1371/journal.pone.0140013. PMC 4596837. PMID 26444872.
Acetaldehyde (IUPAC systematic name ethanal) is an organic chemical compound with the formula CH3 CHO, sometimes abbreviated as MeCHO. It is a colorless...
Acetaldehyde dehydrogenases (EC 1.2.1.10) are dehydrogenase enzymes which catalyze the conversion of acetaldehyde into acetyl-CoA. This can be summarized...
poorly understood, several factors are known to be involved including acetaldehyde accumulation, changes in the immune system and glucose metabolism, dehydration...
alcoholic beverages. The reaction is the result of an accumulation of acetaldehyde, a metabolic byproduct of the catabolic metabolism of alcohol, and is...
Acetaldehyde ammonia trimer is a chemical compound described by the formula (CH3CHNH)3. The pure material is colourless but samples often appear light...
converted to acetaldehyde, which is then broken down by acetaldehyde dehydrogenase. When the dehydrogenase enzyme is inhibited, acetaldehyde builds up,...
humans, several enzymes are involved in processing ethanol first into acetaldehyde and further into acetic acid and acetyl-CoA. Once acetyl-CoA is formed...
the Monsanto process, most acetic acid was produced by oxidation of acetaldehyde. This remains the second-most-important manufacturing method, although...
molecule. Smaller aldehydes are more soluble in water, formaldehyde and acetaldehyde completely so. The volatile aldehydes have pungent odors. Aldehydes can...
nutrients. Acetaldehyde is toxic to peripheral nerves. There are increased levels of acetaldehyde produced during ethanol metabolism. If the acetaldehyde is not...
all contribute to the production of acetaldehyde. Photo-oxidation can also cause the gradual formation acetaldehyde over the object's lifespan. This proceeds...
With the formula CH2CHOH, it is a labile compound that converts to acetaldehyde immediately upon isolation near room temperature. It is not a practical...
consumption of ethanol—can be attributed to acetaldehyde toxicity in humans. The subsequent oxidation of acetaldehyde into acetate is performed by aldehyde...
Paraldehyde is the cyclic trimer of acetaldehyde molecules. Formally, it is a derivative of 1,3,5-trioxane, with a methyl group substituted for a hydrogen...
aldehyde dehydrogenase enzyme, which is responsible for the metabolism of acetaldehyde (produced from the metabolism of alcohol by alcohol dehydrogenase). This...
99.1.6) is an enzyme that catalyzes the chemical reaction (indol-3-yl)acetaldehyde oxime ⇌ {\displaystyle \rightleftharpoons } (indol-3-yl)acetonitrile...
remains unclear, but acetaldehyde plays a major role. Immediately after alcohol consumption, there are elevated levels of acetaldehyde in saliva, peaking...
reaction L-threonine ⇌ {\displaystyle \rightleftharpoons } glycine + acetaldehyde This enzyme belongs to the family of lyases, specifically the aldehyde-lyases...
the oxidation of ethanol to acetaldehyde in animals, but in yeast it catalyzes the production of ethanol from acetaldehyde. Oxidoreductases, enzymes that...
as a pesticide against slugs and snails. It is the cyclic tetramer of acetaldehyde. Metaldehyde is flammable, toxic if ingested in large quantities, and...