Record Information
Version1.0
Creation date2010-04-08 22:07:56 UTC
Update date2018-05-28 23:16:57 UTC
Primary IDFDB008133
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name2-Methyl-2-butenal
DescriptionTiglic aldehyde, also known as 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. Tiglic aldehyde is soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Tiglic aldehyde is a strong, fruit, and green tasting compound and can be found in a number of food items such as safflower, garden tomato, herbs and spices, and spearmint, which makes tiglic aldehyde a potential biomarker for the consumption of these food products. Tiglic aldehyde can be found primarily in feces and saliva. Tiglic aldehyde is an organic compound with the formula CH3CH=C(CH3)CHO. This colorless liquid is a building block in organic synthesis. It is an α,β-unsaturated aldehyde related to the better-known crotonaldehyde. The European rabbit, Oryctolagus cuniculus, uses 2-methyl-2-butenal as a pheromone. The rabbit pheromone, trans-2-methyl-2-butenal, was reported to be involved in the communication between species, defined under the class of "interomone." .
CAS Number1115-11-3
Structure
Thumb
Synonyms
SynonymSource
(2E)-2-Methyl-2-butenalHMDB
(e)-2-Methyl-2-butenalHMDB
(e)-2-Methylbut-2-en-1-alHMDB
(e)-2-Methylbut-2-enalHMDB
(e)-2-MethylcrotonaldehydeHMDB
2-Methyl-(2E)-2-butenalHMDB
2-Methyl-(e)-2-butenalHMDB
2-Methyl-(e)-crotonaldehydeHMDB
2-Methyl-2(e)-butenalHMDB
2-Methyl-2-butenalHMDB
2-Methyl-2-butenal, (e)HMDB
2-Methyl-2-butenal, transHMDB
2-Methyl-crotonaldehydeHMDB
2-Methylbut-(e)-2-enalHMDB
CH3CH=C(CH3)choHMDB
Crotonaldehyde, 2-methyl-, (e)- (8ci)HMDB
e-2-Methyl-2-butenalHMDB
FEMA 3407HMDB
TiglaldehydeHMDB
Tiglaldehyde (2-methyl-2-butenal)HMDB
Tiglic acid aldehydeHMDB
TiglinaldehydeHMDB
trans-2,3-DimethylacroleinHMDB
trans-2-Methyl-2-butenalHMDB
trans-2-MethylcrotonaldehydeHMDB
trans-TigaldehydeHMDB
trans-TiglaldehydeHMDB
2-Methylbut-2-enalMeSH
2-Methylcrotonaldehydedb_source
2,3-Dimethylacroleindb_source
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
Polarizability9.49 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC5H8O
IUPAC name(2Z)-2-methylbut-2-enal
InChI IdentifierInChI=1S/C5H8O/c1-3-5(2)4-6/h3-4H,1-2H3/b5-3-
InChI KeyACWQBUSCFPJUPN-HYXAFXHYSA-N
Isomeric SMILESC\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
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionC 71.39%; H 9.59%; O 19.02%DFC
Melting PointNot Available
Boiling PointNot Available
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 Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-05q9-9000000000-c55d49861ee6b1113cf9View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-9000000000-1e63e408fa4731465f7dView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-9000000000-840489df070350dbd21aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0pb9-9000000000-967f72345ff4e63b646fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-9000000000-07023e058e96a5079ecaView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a59-9000000000-8c33b9aae6f9f2e3d24aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9000000000-073297c5c61a3fcdc6feView in MoNA
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) IDDCL50-K:DCL50-K
EAFUS IDNot Available
Dr. Duke ID2-METHYL-2-BUTENAL
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Flavornet ID1115-11-3
GoodScent IDrw1015161
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
green
  1. Arn, H, Acree TE. “Flavornet: A database of aroma compounds based on odor potency in natural products”. Developments in Food Science 40 (1998): 27. doi:10.1016/S0167-4501(98)80029-0
  2. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
fruit
  1. Arn, H, Acree TE. “Flavornet: A database of aroma compounds based on odor potency in natural products”. Developments in Food Science 40 (1998): 27. doi:10.1016/S0167-4501(98)80029-0
pungent
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
ethereal
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
nutty
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
anisic
  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.
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).