You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
StatusExpected but not Quantified
Creation Date2012-09-11 21:16:00 UTC
Update Date2018-03-12 21:59:22 UTC
Secondary Accession Numbers
  • HMDB36208
Metabolite Identification
Common Name2-Propenyl 2-ethylbutanoate
Description2-propenyl 2-ethylbutanoate, also known as allyl 2-ethyl butyrate or butanoic acid, 2-ethyl-, 2-propen-1-yl ester, is a member of the class of compounds known as fatty acid esters. Fatty acid esters are carboxylic ester derivatives of a fatty acid. Thus, 2-propenyl 2-ethylbutanoate is considered to be a fatty ester lipid molecule. 2-propenyl 2-ethylbutanoate is slightly soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). 2-propenyl 2-ethylbutanoate has a cherry-pit, ethereal, and fruit taste.
2-Propenyl 2-ethylbutyrateHMDB
Allyl 2-ethyl butyrateHMDB
Allyl 2-ethylbutanoateHMDB
Allyl 2-ethylbutyrateHMDB
Butanoic acid, 2-ethyl-, 2-propen-1-yl esterHMDB
Butanoic acid, 2-ethyl-, 2-propenyl esterHMDB
Butyric acid, 2-ethyl-, 2-propenyl esterHMDB
Butyric acid, 2-ethyl-, allyl esterHMDB
Butyric acid, 2-ethyl-, allyl ester (8ci)HMDB
Chemical FormulaC9H16O2
Average Molecular Weight156.2221
Monoisotopic Molecular Weight156.115029756
IUPAC Nameprop-2-en-1-yl 2-ethylbutanoate
Traditional Nameprop-2-en-1-yl 2-ethylbutanoate
CAS Registry Number7493-69-8
InChI Identifier
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as fatty acid esters. These are carboxylic ester derivatives of a fatty acid.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acid esters
Direct ParentFatty acid esters
Alternative Parents
  • Fatty acid ester
  • Carboxylic acid ester
  • Monocarboxylic acid or derivatives
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available

Biological location:

  Cell and elements:



  Biofluid and excreta:

Route of exposure:




Biological role:

Industrial application:

  Food and nutrition:


Naturally occurring process:

  Biological process:

    Cellular process:

    Biochemical pathway:

    Chemical reaction:

    Biochemical process:

Physical Properties
Experimental Properties
Melting Point165 - 167 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility1.14 g/LALOGPS
pKa (Strongest Basic)-7.1ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area26.3 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity44.98 m³·mol⁻¹ChemAxon
Polarizability18.15 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-006x-9100000000-753e8295411468e511d3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4l-8900000000-0be01589ca8ca713ed08View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-9100000000-d7b4be5213f3891fed0aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-6f0ca53871912e76e716View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-3900000000-5be9470a61fcb0cad29eView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-01b9-8900000000-384dd6a62aa2683536d5View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00y0-9100000000-a0ee54461bdd853d2696View in MoNA
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biofluid LocationsNot Available
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB015066
KNApSAcK IDNot Available
Chemspider ID55337
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound61408
PDB IDNot Available
ChEBI IDNot Available
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  2. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  3. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  4. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
  5. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
  6. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.