Record Information
Version1.0
Creation date2010-04-08 22:07:00 UTC
Update date2019-11-26 03:00:58 UTC
Primary IDFDB006137
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name2-Methylbut-2-en-1-al
Description2-methylbut-2-en-1-al, also known as (E)-2-methyl-2-butenal, is a member of the class of compounds known as enals. Enals 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-methylbut-2-en-1-al is soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). 2-methylbut-2-en-1-al can be found in apple, garden onion, and peppermint, which makes 2-methylbut-2-en-1-al a potential biomarker for the consumption of these food products.
CAS NumberNot Available
Structure
Thumb
Synonyms
Predicted Properties
PropertyValueSource
Water Solubility40.6 g/LALOGPS
logP0.93ALOGPS
logP1.16ChemAxon
logS-0.32ALOGPS
pKa (Strongest Basic)-4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area17.07 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity26.4 m³·mol⁻¹ChemAxon
Polarizability9.47 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC5H8O
IUPAC name(2E)-2-methylbut-2-enal
InChI IdentifierInChI=1S/C5H8O/c1-3-5(2)4-6/h3-4H,1-2H3/b5-3+
InChI KeyACWQBUSCFPJUPN-HWKANZROSA-N
Isomeric SMILES[H]\C(C)=C(\C)C=O
Average Molecular Weight84.1164
Monoisotopic Molecular Weight84.057514878
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
  • Short-chain aldehyde
  • Aldehyde
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
OntologyNo ontology term
Physico-Chemical Properties
Physico-Chemical Properties - Experimental
Spectra
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
EI-MSMass Spectrum (Electron Ionization)splash10-057i-9000000000-96f6921ba6ae1e60ba3b2015-03-01View Spectrum
Predicted GC-MS2-Methylbut-2-en-1-al, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-05q9-9000000000-1345f70b828cd1986d64Spectrum
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-9000000000-48a52461a750e1e8c5b42016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-9000000000-0ee67367a5b13b94147d2016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0pb9-9000000000-7aa169d6ccaac2534ba42016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-9000000000-43a5aeb5c816ea2ed9c92016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-9000000000-b50ac6ec6e73789968da2016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-1000-9000000000-4a8cb78eee954e4bea3b2016-08-03View Spectrum
NMR
TypeDescriptionView
1D NMR1H NMR Spectrum (1D, 400 MHz, CDCl3, experimental)Spectrum
1D NMR13C NMR Spectrum (1D, 100.54 MHz, CDCl3, experimental)Spectrum
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound IDNot Available
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke ID2-METHYL-BUT-2-EN-1-AL
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
Processing...
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
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).