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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-08-28 15:26:28 UTC
Update Date2021-09-26 22:35:32 UTC
HMDB IDHMDB0242201
Secondary Accession NumbersNone
Metabolite Identification
Common Name(-)-alpha-Tocopherol
Descriptionα-tocopherol belongs to the class of organic compounds known as tocopherols. These are vitamin E derivatives containing a saturated trimethyltridecyl chain attached to the carbon C6 atom of a benzopyran ring system. The differ from tocotrienols that contain an unsaturated trimethyltrideca-3,7,11-trien-1-yl chain. Based on a literature review a significant number of articles have been published on α-tocopherol. This compound has been identified in human blood as reported by (PMID: 31557052 ). (-)-alpha-tocopherol is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically (-)-alpha-Tocopherol is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
Vitamin eMeSH, HMDB
(-)-a-TocopherolGenerator
(-)-Α-tocopherolGenerator
Chemical FormulaC29H50O2
Average Molecular Weight430.717
Monoisotopic Molecular Weight430.38108085
IUPAC Name2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-3,4-dihydro-2H-1-benzopyran-6-ol
Traditional Namevita E
CAS Registry NumberNot Available
SMILES
CC(C)CCCC(C)CCCC(C)CCCC1(C)CCC2=C(C)C(O)=C(C)C(C)=C2O1
InChI Identifier
InChI=1S/C29H50O2/c1-20(2)12-9-13-21(3)14-10-15-22(4)16-11-18-29(8)19-17-26-25(7)27(30)23(5)24(6)28(26)31-29/h20-22,30H,9-19H2,1-8H3
InChI KeyGVJHHUAWPYXKBD-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as tocopherols. These are vitamin E derivatives containing a saturated trimethyltridecyl chain attached to the carbon C6 atom of a benzopyran ring system. The differ from tocotrienols that contain an unsaturated trimethyltrideca-3,7,11-trien-1-yl chain.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassQuinone and hydroquinone lipids
Direct ParentTocopherols
Alternative Parents
Substituents
  • Tocopherol
  • Diterpenoid
  • 1-benzopyran
  • Benzopyran
  • Chromane
  • Alkyl aryl ether
  • Benzenoid
  • Oxacycle
  • Organoheterocyclic compound
  • Ether
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
Role
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP8.84ALOGPS
logP10.51ChemAxon
logS-7.8ALOGPS
pKa (Strongest Acidic)10.8ChemAxon
pKa (Strongest Basic)-4.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area29.46 ŲChemAxon
Rotatable Bond Count12ChemAxon
Refractivity135.37 m³·mol⁻¹ChemAxon
Polarizability56.18 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+220.2330932474
DeepCCS[M-H]-216.56230932474
DeepCCS[M-2H]-252.75430932474
DeepCCS[M+Na]+229.04530932474
AllCCS[M+H]+215.732859911
AllCCS[M+H-H2O]+213.732859911
AllCCS[M+NH4]+217.632859911
AllCCS[M+Na]+218.132859911
AllCCS[M-H]-215.032859911
AllCCS[M+Na-2H]-217.832859911
AllCCS[M+HCOO]-221.032859911

Predicted Kovats Retention Indices

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
(-)-alpha-Tocopherol,1TMS,isomer #1CC1=C(C)C2=C(CCC(C)(CCCC(C)CCCC(C)CCCC(C)C)O2)C(C)=C1O[Si](C)(C)C3157.3Semi standard non polar33892256
(-)-alpha-Tocopherol,1TMS,isomer #1CC1=C(C)C2=C(CCC(C)(CCCC(C)CCCC(C)CCCC(C)C)O2)C(C)=C1O[Si](C)(C)C2975.2Standard non polar33892256
(-)-alpha-Tocopherol,1TMS,isomer #1CC1=C(C)C2=C(CCC(C)(CCCC(C)CCCC(C)CCCC(C)C)O2)C(C)=C1O[Si](C)(C)C3032.8Standard polar33892256
(-)-alpha-Tocopherol,1TBDMS,isomer #1CC1=C(C)C2=C(CCC(C)(CCCC(C)CCCC(C)CCCC(C)C)O2)C(C)=C1O[Si](C)(C)C(C)(C)C3415.8Semi standard non polar33892256
(-)-alpha-Tocopherol,1TBDMS,isomer #1CC1=C(C)C2=C(CCC(C)(CCCC(C)CCCC(C)CCCC(C)C)O2)C(C)=C1O[Si](C)(C)C(C)(C)C3162.1Standard non polar33892256
(-)-alpha-Tocopherol,1TBDMS,isomer #1CC1=C(C)C2=C(CCC(C)(CCCC(C)CCCC(C)CCCC(C)C)O2)C(C)=C1O[Si](C)(C)C(C)(C)C3162.6Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-3,4-dihydro-2H-1-benzopyran-6-ol GC-MS (Non-derivatized) - 70eV, Positivesplash10-0aor-9886300000-b3225facac6ebdd8ddbd2018-04-09Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-3,4-dihydro-2H-1-benzopyran-6-ol GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-3,4-dihydro-2H-1-benzopyran-6-ol GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 10V, Negative-QTOFsplash10-004i-0110900000-d5b620320c97f00ad5622015-05-27Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 20V, Negative-QTOFsplash10-01t9-0730900000-36e33000e46f480ceb9d2015-05-27Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 40V, Negative-QTOFsplash10-03e9-0921200000-7c36ba360f71f0d4b5122015-05-27Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 10V, Negative-QTOFsplash10-004i-0000900000-d3ddef81c134412455e12021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 20V, Negative-QTOFsplash10-004i-0310900000-30597e14cf876e4e47642021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 40V, Negative-QTOFsplash10-08g0-2982400000-371737325df4dbb523b22021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 10V, Positive-QTOFsplash10-001i-0742900000-e04f7b35db8df7846abb2015-05-27Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 20V, Positive-QTOFsplash10-014i-1910000000-cc361786eb3f51f45d192015-05-27Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 40V, Positive-QTOFsplash10-066r-3930000000-979a3e4c33d64d0c62152015-05-27Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 10V, Positive-QTOFsplash10-001i-3003900000-22e1cd43cc0d836c7bed2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 20V, Positive-QTOFsplash10-05r1-9313200000-cbc230d5dd20c629ffab2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (-)-alpha-Tocopherol 40V, Positive-QTOFsplash10-0a4i-9320000000-5958d2e1d5b687b012c12021-10-12Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB031279
KNApSAcK IDNot Available
Chemspider ID2032
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkΑ-Tocopherol
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]