Record Information
Version1.0
Creation Date2016-09-30 22:47:06 UTC
Update Date2020-04-22 15:08:32 UTC
BMDB IDBMDB0001518
Secondary Accession Numbers
  • BMDB01518
Metabolite Identification
Common NameAlpha-CEHC
DescriptionAlpha-Cehc, also known as Α-cehc, belongs to the class of organic compounds known as 1-benzopyrans. These are organic aromatic compounds that 1-benzopyran, a bicyclic compound made up of a benzene ring fused to a pyran, so that the oxygen atom is at the 1-position. Alpha-Cehc is possibly soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Alpha-Cehc exists in all living organisms, ranging from bacteria to humans.
Structure
Thumb
Synonyms
ValueSource
a-CEHCGenerator
Α-cehcGenerator
3-(6-Hydroxy-2,5,7,8-tetramethyl-3,4-dihydro-2H-1-benzopyran-2-yl)propanoateHMDB
α-Carboxyethyl hydrochromanHMDB
alpha-Carboxyethyl hydrochromanGenerator
2,5,7,8-Tetramethyl-2(2'-carboxyethyl)-6-hydroxychromanHMDB
2,5,7,8-Tetramethyl-2-(β-carboxyethyl)-6-hydroxychromanGenerator
2,5,7,8-Tetramethyl-2-(beta-carboxyethyl)-6-hydroxychromanHMDB
6-Hydroxy-2-(2-carboxylethyl)-2,5,7,8-tetramethylchromanHMDB
6-Hydroxy-2-carboxylethyl-2,5,7,8-tetramethylchromanHMDB
alpha-CEHCMeSH
Chemical FormulaC16H22O4
Average Molecular Weight278.3435
Monoisotopic Molecular Weight278.151809192
IUPAC Name3-(6-hydroxy-2,5,7,8-tetramethyl-3,4-dihydro-2H-1-benzopyran-2-yl)propanoic acid
Traditional Nameα-cehc
CAS Registry Number4072-32-6
SMILES
CC1=C(O)C(C)=C2CCC(C)(CCC(O)=O)OC2=C1C
InChI Identifier
InChI=1S/C16H22O4/c1-9-10(2)15-12(11(3)14(9)19)5-7-16(4,20-15)8-6-13(17)18/h19H,5-8H2,1-4H3,(H,17,18)
InChI KeyAXODOWFEFKOVSH-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as 1-benzopyrans. These are organic aromatic compounds that 1-benzopyran, a bicyclic compound made up of a benzene ring fused to a pyran, so that the oxygen atom is at the 1-position.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzopyrans
Sub Class1-benzopyrans
Direct Parent1-benzopyrans
Alternative Parents
Substituents
  • 1-benzopyran
  • Alkyl aryl ether
  • Benzenoid
  • Oxacycle
  • Monocarboxylic acid or derivatives
  • Ether
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
StatusDetected but not Quantified
Origin
  • Endogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cell membrane
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP2.9ALOGPS
logP3.88ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)4.4ChemAxon
pKa (Strongest Basic)-4.9ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area66.76 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity77.38 m³·mol⁻¹ChemAxon
Polarizability30.5 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-08iu-4090000000-8ca9dbe51872599f7689View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-0ab9-9104300000-89eb4eb596d64c263298View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , negativesplash10-001i-0090000000-5984299071d9bd578a66View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , positivesplash10-03di-0940000000-e94cb5537d42ecca8f25View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-0490000000-5a4d681fd73f355a6058View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014i-0930000000-b419f254c71bb6124ca1View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-07br-2900000000-5c87bdb630cb5c9afc3eView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0190000000-eb3543747e604b52ab09View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0bw9-1490000000-1c600a1fe465c3eb7993View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9810000000-c76ff537508835c548e2View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-0190000000-5a9a1904b542c448007aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-0790000000-0ce3fe0382fcea303038View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00kb-7900000000-805173297214fa41fc0aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0090000000-54b37056d244a02c63ecView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-0090000000-34fb2875b590a256850bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-02tc-2490000000-b524618831ea011c0e2aView in MoNA
1D NMR13C NMR Spectrum (1D, 100 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 100 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 1000 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 1000 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 200 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 200 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 300 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 300 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 400 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 400 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 500 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 600 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 700 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 700 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 800 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 800 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 900 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 900 MHz, H2O, predicted)Not AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Cell membrane
  • Membrane
Biospecimen Locations
  • Milk
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0001518
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB022669
KNApSAcK IDNot Available
Chemspider ID8119154
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound9943542
PDB IDNot Available
ChEBI ID626842
References
Synthesis ReferencePope, Simon A. S.; Burtin, Guillaume E.; Clayton, Peter T.; Madge, David J.; Muller, David P. R. Synthesis and analysis of conjugates of the major vitamin E metabolite, a-CEHC. Free Radical Biology & Medicine (2002), 33(6), 807-817.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Xi X, Kwok LY, Wang Y, Ma C, Mi Z, Zhang H: Ultra-performance liquid chromatography-quadrupole-time of flight mass spectrometry MS(E)-based untargeted milk metabolomics in dairy cows with subclinical or clinical mastitis. J Dairy Sci. 2017 Jun;100(6):4884-4896. doi: 10.3168/jds.2016-11939. Epub 2017 Mar 23. [PubMed:28342601 ]