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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2006-05-22 15:12:44 UTC
Update Date2023-02-21 17:16:34 UTC
HMDB IDHMDB0003243
Secondary Accession Numbers
  • HMDB03243
Metabolite Identification
Common NameAcetoin
DescriptionAcetoin, also known as dimethylketol or 2,3-butanolone, belongs to the class of organic compounds known as acyloins. These are organic compounds containing an alpha hydroxy ketone. Acyloins are formally derived from reductive coupling of carboxylic acyl groups. Thus, acetoin is considered to be an oxygenated hydrocarbon lipid molecule. Acetoin is used as an external energy store by a number of fermentive bacteria. Acetoin, along with diacetyl, is one of the compounds giving butter its characteristic flavor. Acetoin is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Acetoin is used as a food flavoring (in baked goods) and a fragrance. Acetoin is a sweet, buttery, and creamy tasting compound. Outside of the human body, Acetoin has been detected, but not quantified in several different foods, such as cocoa and cocoa products, evergreen blackberries, orange bell peppers, tortilla chips, and pomes. This could make acetoin a potential biomarker for the consumption of these foods. Constituent of beer, wine, fresh or cooked apple, fresh or cooked leak, corn, honey, cocoa, butter, cheeses, roasted coffee and other foodstuffs. Acetoin, with regard to humans, has been found to be associated with several diseases such as eosinophilic esophagitis and ulcerative colitis; acetoin has also been linked to the inborn metabolic disorder celiac disease. Acetoin is a colorless or pale yellow to green yellow liquid with a pleasant, buttery odor. It can be found in apples, butter, yogurt, asparagus, black currants, blackberry, wheat, broccoli, brussels sprouts, cantaloupe.
Structure
Thumb
Synonyms
Chemical FormulaC4H8O2
Average Molecular Weight88.1051
Monoisotopic Molecular Weight88.0524295
IUPAC Name3-hydroxybutan-2-one
Traditional Nameacetoin
CAS Registry Number513-86-0
SMILES
CC(O)C(C)=O
InChI Identifier
InChI=1S/C4H8O2/c1-3(5)4(2)6/h3,5H,1-2H3
InChI KeyROWKJAVDOGWPAT-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as acyloins. These are organic compounds containing an alpha hydroxy ketone. Acyloins are formally derived from reductive coupling of carboxylic acyl groups.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbonyl compounds
Direct ParentAcyloins
Alternative Parents
Substituents
  • Acyloin
  • Alpha-hydroxy ketone
  • Secondary alcohol
  • Ketone
  • Organic oxide
  • Hydrocarbon derivative
  • Alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effect
Disposition
Biological locationRoute of exposureSource
ProcessNot Available
Role
Physical Properties
StateLiquid
Experimental Molecular Properties
PropertyValueReference
Melting Point15 °CNot Available
Boiling Point147.00 to 148.00 °C. @ 760.00 mm HgThe Good Scents Company Information System
Water Solubility1000 mg/mL at 20 °CNot Available
LogP-0.360The Good Scents Company Information System
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm (predicted from logP)
Biospecimen Locations
  • Blood
  • Feces
  • Saliva
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Campylobacter jejuni infection
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Clostridium difficile infection
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Ulcerative Colitis
details
FecesDetected and Quantified0-3877982.0918 nmol/g wet fecesChildren (1-13 years old)Not Specified
Treated celiac disease
details
UrineDetected and Quantified5.516 +/- 5.604 umol/mmol creatinineChildren (1 - 13 years old)Not Specified
Eosinophilic esophagitis
    • Analysis of 30 no...
details
Associated Disorders and Diseases
Disease References
Ulcerative colitis
  1. Garner CE, Smith S, de Lacy Costello B, White P, Spencer R, Probert CS, Ratcliffe NM: Volatile organic compounds from feces and their potential for diagnosis of gastrointestinal disease. FASEB J. 2007 Jun;21(8):1675-88. Epub 2007 Feb 21. [PubMed:17314143 ]
Celiac disease
  1. Di Cagno R, De Angelis M, De Pasquale I, Ndagijimana M, Vernocchi P, Ricciuti P, Gagliardi F, Laghi L, Crecchio C, Guerzoni ME, Gobbetti M, Francavilla R: Duodenal and faecal microbiota of celiac children: molecular, phenotype and metabolome characterization. BMC Microbiol. 2011 Oct 4;11:219. doi: 10.1186/1471-2180-11-219. [PubMed:21970810 ]
Eosinophilic esophagitis
  1. Slae, M., Huynh, H., Wishart, D.S. (2014). Analysis of 30 normal pediatric urine samples via NMR spectroscopy (unpublished work). NA.
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB011799
KNApSAcK IDC00050424
Chemspider ID21105851
KEGG Compound IDC00466
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkAcetoin
METLIN ID103
PubChem Compound179
PDB IDNot Available
ChEBI ID15688
Food Biomarker OntologyNot Available
VMH IDACTN_R
MarkerDB IDMDB00013447
Good Scents IDrw1007331
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Hirooka EY, Muller EE, Freitas JC, Vicente E, Yoshimoto Y, Bergdoll MS: Enterotoxigenicity of Staphylococcus intermedius of canine origin. Int J Food Microbiol. 1988 Dec;7(3):185-91. [PubMed:3275321 ]
  2. Walker V, Mills GA: Urinary organic acid excretion by babies born before 33 weeks of gestation. Clin Chem. 1989 Jul;35(7):1460-6. [PubMed:2758593 ]
  3. Walker V, Mills GA, Hall MA, Lowes JA: Carbohydrate fermentation by gut microflora in preterm neonates. Arch Dis Child. 1989 Oct;64(10 Spec No):1367-73. [PubMed:2589871 ]
  4. Otsuka M, Ohmori S: Simple and sensitive determination of diacetyl and acetoin in biological samples and alcoholic drinks by gas chromatography with electron-capture detection. J Chromatogr. 1992 Jun 10;577(2):215-20. [PubMed:1400754 ]