Record Information
Version1.0
Creation Date2016-05-19 01:52:38 UTC
Update Date2016-11-09 01:09:23 UTC
Accession NumberCHEM004611
Identification
Common Name2-ACETYL-1-PYRROLINE
ClassSmall Molecule
DescriptionA pyrroline that is 1-pyrroline in which the hydrogen at position 2 is replaced by an acetyl group. It is an aroma and flavour compound present in jasmine rice and basmati rice. It is responsible for the 'popcorn' aroma in a large variety of cereal and food products. It is one of the key odourants of the crust of bread and considered to be responsible for the cracker-like odour properties. In bread, it is primarily generated during baking but amounts are influenced by ingredient composition and fermentation conditions.
Contaminant Sources
  • EAFUS Chemicals
  • FooDB Chemicals
Contaminant TypeNot Available
Chemical Structure
Thumb
Synonyms
ValueSource
2-Acetyl-4,5-dihydro-3H-pyrroleChEBI
2APChEBI
APRChEBI
1-(3,4-dihydro-2H-Pyrrol-5-yl)ethanoneHMDB
1-(3,4-dihydro-2H-Pyrrol-5-yl)ethanone, 9ciHMDB
1-Pyrroline, 2-acetylHMDB
2-Acetyl-1-pyrollineHMDB
2-Acetyl-1-pyrrolineHMDB, MeSH
2-AcetylpyrrolineMeSH, HMDB
Chemical FormulaC6H9NO
Average Molecular Mass111.142 g/mol
Monoisotopic Mass111.068 g/mol
CAS Registry Number99583-29-6
IUPAC Name1-(3,4-dihydro-2H-pyrrol-5-yl)ethan-1-one
Traditional Name2-acetyl-1-pyrroline
SMILESCC(=O)C1=NCCC1
InChI IdentifierInChI=1S/C6H9NO/c1-5(8)6-3-2-4-7-6/h2-4H2,1H3
InChI KeyDQBQWWSFRPLIAX-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as pyrrolines. Pyrrolines are compounds containing a pyrroline ring, which is a five-member unsaturated aliphatic ring with one nitrogen atom and four carbon atoms.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyrrolines
Sub ClassNot Available
Direct ParentPyrrolines
Alternative Parents
Substituents
  • Pyrroline
  • Ketimine
  • Ketone
  • Propargyl-type 1,3-dipolar organic compound
  • Organic 1,3-dipolar compound
  • Azacycle
  • Carbonyl group
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Imine
  • Hydrocarbon derivative
  • Organic oxide
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginNot Available
Cellular LocationsNot Available
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateNot Available
AppearanceNot Available
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility4.09 g/LALOGPS
logP0.19ALOGPS
logP0.86ChemAxon
logS-1.4ALOGPS
pKa (Strongest Acidic)18.44ChemAxon
pKa (Strongest Basic)3.77ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area29.43 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity31.39 m³·mol⁻¹ChemAxon
Polarizability12.01 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-014l-9000000000-b2ec2a5a737593af1876Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-5900000000-ba7d8b3068bce1b47b39Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01ox-9300000000-d40b8a0858de158c3dd1Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00kf-9000000000-93e30e06cf0f3fac2e9eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-1900000000-c99599e8eef94b8c0068Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-03di-3900000000-24d2c60642b551195027Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014l-9000000000-a6046c2688bcfbb4c313Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-1900000000-24735682b0a5560e64aeSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-02t9-9500000000-2e635455b88717ca2f97Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014l-9000000000-a0c8a0fe2acbc430c438Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-3900000000-7cddab0b1712fe3943e6Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014l-9100000000-a2ea5be954e40e1ce67bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-efc17d3cfd9d54e8a0c4Spectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityNot Available
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)Not Available
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB0031308
FooDB IDFDB003364
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia Link2-Acetyl-1-pyrroline
Chemspider ID456071
ChEBI ID67125
PubChem Compound ID522834
Kegg Compound IDNot Available
YMDB IDYMDB01451
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=12428963
2. https://www.ncbi.nlm.nih.gov/pubmed/?term=12517110
3. https://www.ncbi.nlm.nih.gov/pubmed/?term=16356012
4. https://www.ncbi.nlm.nih.gov/pubmed/?term=16771451
5. https://www.ncbi.nlm.nih.gov/pubmed/?term=20497370
6. https://www.ncbi.nlm.nih.gov/pubmed/?term=20800726
7. https://www.ncbi.nlm.nih.gov/pubmed/?term=22404867
8.
9. Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.