2-ACETYL-1-PYRROLINE (CHEM004611)

Record Information
Version1.0
Creation Date2016-05-19 01:52:38 UTC
Update Date2026-08-23 16:12:39 UTC
Accession NumberCHEM004611
Identification
Common Name2-ACETYL-1-PYRROLINE
ClassSmall Molecule
Description
A 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
MOLSDFPDBSMILESInChI
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
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
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
External Links
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.