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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2009-07-25 00:08:54 UTC
Update Date2021-09-14 15:19:52 UTC
HMDB IDHMDB0012868
Secondary Accession Numbers
  • HMDB12868
Metabolite Identification
Common Name9'-Carboxy-gamma-chromanol
Description9'-Carboxy-gamma-tocopherol is a dehydrogenation carboxylate product of 9'-hydroxy-r-tocopherol by an unidentified microsomal enzyme(s) probably via an aldehyde intermediate. r-Tocopherol provides different antioxidant activities in food and in-vitro studies and showed higher activity in trapping lipophilic electrophiles and reactive nitrogen and oxygen species. From the metabolism end product, only that of r-tocopherol (2,7,8-trimethyl-2-(b-carboxyethyl)-6-hydroxychroman), but not that of a-tocopherol, was identified to provide natriuretic activity. Only the r-tocopherol plasma level served as biomarker for cancer and cardiovascular risk.
Structure
Data?1582753075
Synonyms
ValueSource
(2S,6R)-9-[(2R)-6-Hydroxy-2,7,8-trimethyl-3,4-dihydro-2H-1-benzopyran-2-yl]-2,6-dimethylnonanoateHMDB
Γ-cdmohcHMDB
gamma-CDMOHCHMDB
γ-Carboxydimethyloctyl hydroxychromanHMDB
γ-CarboxydimethyloctylhydroxychromanHMDB
gamma-Carboxydimethyloctyl hydroxychromanHMDB
gamma-CarboxydimethyloctylhydroxychromanHMDB
Chemical FormulaC23H36O4
Average Molecular Weight376.537
Monoisotopic Molecular Weight376.261359639
IUPAC Name(2S,6R)-9-[(2R)-6-hydroxy-2,7,8-trimethyl-3,4-dihydro-2H-1-benzopyran-2-yl]-2,6-dimethylnonanoic acid
Traditional Name(2S,6R)-9-[(2R)-6-hydroxy-2,7,8-trimethyl-3,4-dihydro-1-benzopyran-2-yl]-2,6-dimethylnonanoic acid
CAS Registry Number1215088-64-4
SMILES
C[C@H](CCC[C@H](C)C(O)=O)CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O1
InChI Identifier
InChI=1S/C23H36O4/c1-15(8-6-10-16(2)22(25)26)9-7-12-23(5)13-11-19-14-20(24)17(3)18(4)21(19)27-23/h14-16,24H,6-13H2,1-5H3,(H,25,26)/t15-,16+,23-/m1/s1
InChI KeyODQOKHVJIYTOQE-VBURHUQHSA-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
  • Medium-chain fatty acid
  • 1-hydroxy-2-unsubstituted benzenoid
  • Alkyl aryl ether
  • Branched fatty acid
  • Heterocyclic fatty acid
  • Hydroxy fatty acid
  • Methyl-branched fatty acid
  • Fatty acyl
  • Fatty acid
  • Benzenoid
  • Monocarboxylic acid or derivatives
  • Oxacycle
  • Ether
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organooxygen compound
  • Hydrocarbon derivative
  • Carbonyl group
  • Organic oxygen compound
  • Organic oxide
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
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
Water Solubility0.00085 g/LALOGPS
logP5.61ALOGPS
logP6.86ChemAxon
logS-5.6ALOGPS
pKa (Strongest Acidic)5ChemAxon
pKa (Strongest Basic)-4.9ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area66.76 ŲChemAxon
Rotatable Bond Count9ChemAxon
Refractivity109.07 m³·mol⁻¹ChemAxon
Polarizability44.99 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
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]+191.35830932474
DeepCCS[M-H]-189.030932474
DeepCCS[M-2H]-222.87830932474
DeepCCS[M+Na]+198.05430932474
AllCCS[M+H]+198.432859911
AllCCS[M+H-H2O]+195.832859911
AllCCS[M+NH4]+200.832859911
AllCCS[M+Na]+201.532859911
AllCCS[M-H]-200.832859911
AllCCS[M+Na-2H]-202.232859911
AllCCS[M+HCOO]-203.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
9'-Carboxy-gamma-chromanolC[C@H](CCC[C@H](C)C(O)=O)CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O14218.1Standard polar33892256
9'-Carboxy-gamma-chromanolC[C@H](CCC[C@H](C)C(O)=O)CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O12888.3Standard non polar33892256
9'-Carboxy-gamma-chromanolC[C@H](CCC[C@H](C)C(O)=O)CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O13028.0Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
9'-Carboxy-gamma-chromanol,1TMS,isomer #1CC1=C(O)C=C2CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)C(=O)O[Si](C)(C)C)OC2=C1C2850.2Semi standard non polar33892256
9'-Carboxy-gamma-chromanol,1TMS,isomer #2CC1=C(O[Si](C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)C(=O)O)OC2=C1C2921.7Semi standard non polar33892256
9'-Carboxy-gamma-chromanol,2TMS,isomer #1CC1=C(O[Si](C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)C(=O)O[Si](C)(C)C)OC2=C1C2858.3Semi standard non polar33892256
9'-Carboxy-gamma-chromanol,1TBDMS,isomer #1CC1=C(O)C=C2CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)C(=O)O[Si](C)(C)C(C)(C)C)OC2=C1C3115.5Semi standard non polar33892256
9'-Carboxy-gamma-chromanol,1TBDMS,isomer #2CC1=C(O[Si](C)(C)C(C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)C(=O)O)OC2=C1C3180.1Semi standard non polar33892256
9'-Carboxy-gamma-chromanol,2TBDMS,isomer #1CC1=C(O[Si](C)(C)C(C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)C(=O)O[Si](C)(C)C(C)(C)C)OC2=C1C3363.6Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 9'-Carboxy-gamma-chromanol 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 - 9'-Carboxy-gamma-chromanol 10V, Positive-QTOFsplash10-0kdi-0419000000-cd057edae393743570b52019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 20V, Positive-QTOFsplash10-0udi-0911000000-a634d5d40e9ad8466db62019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 40V, Positive-QTOFsplash10-0udi-2900000000-567171c8ebdc774c19a02019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 10V, Negative-QTOFsplash10-004i-0009000000-8be58d31ef5f29daf85c2019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 20V, Negative-QTOFsplash10-005a-0409000000-c4f9d5fd1cfb91f60b962019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 40V, Negative-QTOFsplash10-05tb-7916000000-27664edfcab573c04ee22019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 10V, Positive-QTOFsplash10-0ufr-1259000000-07af3dd22eab013841cd2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 20V, Positive-QTOFsplash10-0012-1492000000-34cf07d467d81a9bf6a92021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 40V, Positive-QTOFsplash10-0fe3-4920000000-f1c204588a76056667ac2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 10V, Negative-QTOFsplash10-004i-0009000000-8cfda78ea5a5ec24a3522021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 20V, Negative-QTOFsplash10-002b-0509000000-c1a7322cafcde235713d2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9'-Carboxy-gamma-chromanol 40V, Negative-QTOFsplash10-02ou-1924000000-878d6d96351e5c61af972021-09-24Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Membrane (predicted from logP)
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID103885080
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound134159054
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDCE5719
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Zhao Y, Lee MJ, Cheung C, Ju JH, Chen YK, Liu B, Hu LQ, Yang CS: Analysis of multiple metabolites of tocopherols and tocotrienols in mice and humans. J Agric Food Chem. 2010 Apr 28;58(8):4844-52. doi: 10.1021/jf904464u. [PubMed:20222730 ]