Record Information
Version1.0
Creation date2010-04-08 22:09:51 UTC
Update date2019-11-26 03:05:31 UTC
Primary IDFDB011832
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name2-Methyl-2-pentenal
Description2-Methyl-2-pentenal, also known as CH3CH2CH=c(CH3)cho or fema 3194, belongs to the class of organic compounds known as enals. These are an alpha,beta-unsaturated aldehyde of general formula RC=C-CH=O in which the aldehydic C=O function is conjugated to a C=C triple bond at the alpha,beta position. 2-Methyl-2-pentenal is an extremely weak basic (essentially neutral) compound (based on its pKa). 2-Methyl-2-pentenal is a fruity, gassy, and green tasting compound. 2-Methyl-2-pentenal is found, on average, in the highest concentration within safflowers. 2-Methyl-2-pentenal has also been detected, but not quantified in, several different foods, such as garden onions, tea, prickly pears, fruits, and alcoholic beverages. This could make 2-methyl-2-pentenal a potential biomarker for the consumption of these foods.
CAS Number623-36-9
Structure
Thumb
Synonyms
SynonymSource
(2E)-2-Methyl-2-pentenalHMDB
(e)-2-Methyl-2-pentenalHMDB
2,4-DimethylcrotonaldehydeHMDB
2-Methyl-(2E)-2-pentenalHMDB
2-Methyl-(e)-2-pentenalHMDB
2-Methyl-2-penten-1-alHMDB
2-Methyl-2-pentene-1-alHMDB
2-Methyl-2-pentenoic aldehydeHMDB
2-Methyl-3-ethylacroleinHMDB
2-Methylpent-2-enalHMDB
2-MethylpentenalHMDB
2-PropylidenepropionaldehydeHMDB
3-Ethyl-2-methylacraldehydeHMDB
alpha -Methyl-alpha -methylacroleinHMDB
alpha -Methyl-beta -ethylacroleinHMDB
alpha-Methyl-beta-ethylacroleinHMDB
beta -Ethyl-alpha -methylacroleinHMDB
beta-Ethyl-alpha-methylacroleinHMDB
CH3CH2CH=C(CH3)choHMDB
FEMA 3194HMDB
trans-2-Methyl-2-pentenalHMDB
(E)-2-Methyl-2-pentenalbiospider
α-methyl-α-methylacroleinbiospider
α-methyl-β-ethylacroleinbiospider
β-ethyl-α-methylacroleinbiospider
2-Methyl-(2e)-2-pentenalHMDB
2-methyl-(E)-2-pentenalbiospider
2-Pentenal, 2-methyl-biospider
2-Pentenal, 2-methyl-, (2E)-biospider
Alpha-methyl-beta-ethylacroleinbiospider
Beta-ethyl-alpha-methylacroleinbiospider
CH3CH2CH=C(CH3)CHObiospider
Predicted Properties
PropertyValueSource
Water Solubility8.26 g/LALOGPS
logP1.74ALOGPS
logP1.6ChemAxon
logS-1.1ALOGPS
pKa (Strongest Basic)-4.1ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area17.07 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity31 m³·mol⁻¹ChemAxon
Polarizability11.5 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC6H10O
IUPAC name(2Z)-2-methylpent-2-enal
InChI IdentifierInChI=1S/C6H10O/c1-3-4-6(2)5-7/h4-5H,3H2,1-2H3/b6-4-
InChI KeyIDEYZABHVQLHAF-XQRVVYSFSA-N
Isomeric SMILESCC\C=C(\C)C=O
Average Molecular Weight98.143
Monoisotopic Molecular Weight98.073164942
Classification
Description belongs to the class of organic compounds known as enals. These are an alpha,beta-unsaturated aldehyde of general formula RC=C-CH=O in which the aldehydic C=O function is conjugated to a C=C triple bond at the alpha,beta position.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbonyl compounds
Direct ParentEnals
Alternative Parents
Substituents
  • Enal
  • Organic oxide
  • Hydrocarbon derivative
  • Aldehyde
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
Disposition

Route of exposure:

Source:

Biological location:

Process

Naturally occurring process:

Role

Industrial application:

Biological role:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionC 73.43%; H 10.27%; O 16.30%DFC
Melting PointNot Available
Boiling PointBoiling Pt : 136.5 oC
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-015d-9000000000-a9fcc5ace54f9f721d55JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-9000000000-80dd10ce782facd37725JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0005-9000000000-fa6fc4e41d790f0a8243JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00kf-9000000000-a9e6eb88f500baf71992JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-9000000000-d3fda61651136f19b553JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014j-9000000000-a898ad444137be6bde2aJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014i-9000000000-333788330f67071d19adJSpectraViewer
ChemSpider ID10383657
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound ID12376292
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB33714
CRC / DFC (Dictionary of Food Compounds) IDGZS38-H:GZS38-H
EAFUS ID2444
Dr. Duke ID2-METHYLPENT-2-ENAL|2-METHYL-2-PENTENAL
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDrw1035441
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
Flavours
FlavorCitations
powerful
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
green
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
grass
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
fruity
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
gassy
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
Files
MSDSNot Available
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference— Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).