Record Information
Version1.0
Creation Date2016-05-19 02:04:46 UTC
Update Date2016-11-09 01:09:35 UTC
Accession NumberCHEM005644
Identification
Common NameETHYL MALTOL
ClassSmall Molecule
DescriptionEthyl maltol, also known as 3-hydroxy-2-ethyl-4-pyrone or indium ethylmaltol, is a member of the class of compounds known as pyranones and derivatives. These compounds contain a pyran ring which bears a ketone. Ethyl maltol is soluble (in water) and a very weakly acidic compound (based on its pKa). Ethyl maltol is an organic compound that is a common flavourant in some confectioneries. It is related to the more common flavorant maltol by replacement of the methyl group with an ethyl group. It is a white solid with a sweet smell that can be described as caramelized sugar and cooked fruit (Wikipedia). Ethyl maltol is a flavour enhancer, flavouring agent, and a sweetener. It has 4-6X the potency of 3-hydroxy-2-methyl-4H-pyran-4-one.
Contaminant Sources
  • EAFUS Chemicals
  • FooDB Chemicals
  • HPV EPA Chemicals
  • ToxCast & Tox21 Chemicals
Contaminant TypeNot Available
Chemical Structure
Thumb
Synonyms
ValueSource
2-Ethyl-3-hydroxy-4-pyroneHMDB
2-Ethylpyromeconic acidHMDB
3-Hydroxy-2-ethyl-1,4-pyroneHMDB
3-Hydroxy-2-ethyl-4-pyroneHMDB, MeSH
3-Hydroxy-2-ethyl-4H-pyran-4-oneHMDB
3-Hydroxy-2-ethyl-laquo gammaraquo -pyroneHMDB
e637HMDB
FEMA 3487HMDB
Ilekudinoside aHMDB
Veltol plusHMDB
EthylmaltolMeSH, HMDB
Indium ethylmaltolMeSH, HMDB
Chemical FormulaC7H8O3
Average Molecular Mass140.137 g/mol
Monoisotopic Mass140.047 g/mol
CAS Registry Number4940-11-8
IUPAC Name2-ethyl-3-hydroxy-4H-pyran-4-one
Traditional Nameethyl maltol
SMILESCCC1=C(O)C(=O)C=CO1
InChI IdentifierInChI=1S/C7H8O3/c1-2-6-7(9)5(8)3-4-10-6/h3-4,9H,2H2,1H3
InChI KeyYIKYNHJUKRTCJL-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as pyranones and derivatives. Pyranones and derivatives are compounds containing a pyran ring which bears a ketone.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyrans
Sub ClassPyranones and derivatives
Direct ParentPyranones and derivatives
Alternative Parents
Substituents
  • Pyranone
  • Heteroaromatic compound
  • Cyclic ketone
  • Oxacycle
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
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 Solubility58.4 g/LALOGPS
logP0.34ALOGPS
logP1.07ChemAxon
logS-0.38ALOGPS
pKa (Strongest Acidic)9.53ChemAxon
pKa (Strongest Basic)-3.6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area46.53 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity38.25 m³·mol⁻¹ChemAxon
Polarizability13.5 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-01vo-7900000000-76867d3703f3c854f893Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-00dj-8910000000-f84883a6e552d25dbb8fSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-0006-0900000000-e4ed3eb28b3f1958c103Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Positivesplash10-00di-9000000000-8a4bd0cc447badd31408Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-004l-1900000000-8a11dc4b0e615d9e43a9Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-0900000000-9b8b6ea9166c562f4c04Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-2900000000-352cec1e0913cc4ce95eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9100000000-7ef4d63ccf78564b6830Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-1900000000-80cc07e29097652798f5Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-052r-5900000000-512dc846e01abb868b1dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0k96-9100000000-3c73ccd7471d0f22b2ceSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-1900000000-769dae173863b66d0676Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-9800000000-d71174a6586b3aec630dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0ktf-9000000000-4bf79e9b1f58b6f43b51Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-006x-0900000000-01450ae969df68fc3458Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-9400000000-e5b1f23d3f9cf5044141Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0f6x-9000000000-e33841ce2e31d06b12e8Spectrum
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 IDHMDB0031735
FooDB IDFDB008403
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkEthyl maltol
Chemspider ID19804
ChEBI IDNot Available
PubChem Compound ID21059
Kegg Compound IDC20362
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
1. Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.