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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2009-07-25 00:08:31 UTC
Update Date2021-09-14 15:41:20 UTC
HMDB IDHMDB0012850
Secondary Accession Numbers
  • HMDB12850
Metabolite Identification
Common Name7'-Carboxy-gamma-chromanol
Description7'-Carboxy-gamma-tocopherol is a dehydrogenation carboxylate product of 7'-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?1582753074
Synonyms
ValueSource
(4S)-7-[(2R)-6-Hydroxy-2,7,8-trimethyl-3,4-dihydro-2H-1-benzopyran-2-yl]-4-methylheptanoateHMDB
Γ-CMHHCHMDB
gamma-CMHHCHMDB
γ-Carboxymethylhexyl hydroxychromanHMDB
γ-CarboxymethylhexylhydroxychromanHMDB
gamma-Carboxymethylhexyl hydroxychromanHMDB
gamma-CarboxymethylhexylhydroxychromanHMDB
Chemical FormulaC20H30O4
Average Molecular Weight334.456
Monoisotopic Molecular Weight334.214409446
IUPAC Name(4S)-7-[(2R)-6-hydroxy-2,7,8-trimethyl-3,4-dihydro-2H-1-benzopyran-2-yl]-4-methylheptanoic acid
Traditional Name(4S)-7-[(2R)-6-hydroxy-2,7,8-trimethyl-3,4-dihydro-1-benzopyran-2-yl]-4-methylheptanoic acid
CAS Registry Number1221262-13-0
SMILES
C[C@@H](CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O1)CCC(O)=O
InChI Identifier
InChI=1S/C20H30O4/c1-13(7-8-18(22)23)6-5-10-20(4)11-9-16-12-17(21)14(2)15(3)19(16)24-20/h12-13,21H,5-11H2,1-4H3,(H,22,23)/t13-,20+/m0/s1
InChI KeyJFXDIXKMINYLIK-RNODOKPDSA-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
Not AvailableNot 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 Solubility0.0058 g/LALOGPS
logP4.62ALOGPS
logP5.43ChemAxon
logS-4.8ALOGPS
pKa (Strongest Acidic)4.65ChemAxon
pKa (Strongest Basic)-4.9ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area66.76 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity95.3 m³·mol⁻¹ChemAxon
Polarizability39.13 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+185.58330932474
DeepCCS[M-H]-183.22530932474
DeepCCS[M-2H]-217.34730932474
DeepCCS[M+Na]+192.730932474
AllCCS[M+H]+186.032859911
AllCCS[M+H-H2O]+183.032859911
AllCCS[M+NH4]+188.732859911
AllCCS[M+Na]+189.532859911
AllCCS[M-H]-189.532859911
AllCCS[M+Na-2H]-190.332859911
AllCCS[M+HCOO]-191.332859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
7'-Carboxy-gamma-chromanolC[C@@H](CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O1)CCC(O)=O3957.2Standard polar33892256
7'-Carboxy-gamma-chromanolC[C@@H](CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O1)CCC(O)=O2685.3Standard non polar33892256
7'-Carboxy-gamma-chromanolC[C@@H](CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O1)CCC(O)=O2811.5Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
7'-Carboxy-gamma-chromanol,1TMS,isomer #1CC1=C(O[Si](C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)CCC(=O)O)OC2=C1C2708.1Semi standard non polar33892256
7'-Carboxy-gamma-chromanol,1TMS,isomer #2CC1=C(O)C=C2CC[C@@](C)(CCC[C@H](C)CCC(=O)O[Si](C)(C)C)OC2=C1C2674.2Semi standard non polar33892256
7'-Carboxy-gamma-chromanol,2TMS,isomer #1CC1=C(O[Si](C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)CCC(=O)O[Si](C)(C)C)OC2=C1C2689.8Semi standard non polar33892256
7'-Carboxy-gamma-chromanol,1TBDMS,isomer #1CC1=C(O[Si](C)(C)C(C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)CCC(=O)O)OC2=C1C2972.1Semi standard non polar33892256
7'-Carboxy-gamma-chromanol,1TBDMS,isomer #2CC1=C(O)C=C2CC[C@@](C)(CCC[C@H](C)CCC(=O)O[Si](C)(C)C(C)(C)C)OC2=C1C2936.8Semi standard non polar33892256
7'-Carboxy-gamma-chromanol,2TBDMS,isomer #1CC1=C(O[Si](C)(C)C(C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)CCC(=O)O[Si](C)(C)C(C)(C)C)OC2=C1C3179.3Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 7'-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 - 7'-Carboxy-gamma-chromanol 10V, Positive-QTOFsplash10-014r-0539000000-6050268e609a164666342019-02-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 20V, Positive-QTOFsplash10-0udi-1921000000-7fda212da468ee981e952019-02-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 40V, Positive-QTOFsplash10-1000-5900000000-5c8150efaf5eae1bce1f2019-02-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 10V, Negative-QTOFsplash10-001i-0119000000-9efcbf3debf6e3fab1782019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 20V, Negative-QTOFsplash10-00lb-1749000000-0ef6f3c235f3a19bf9812019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 40V, Negative-QTOFsplash10-0a4j-9841000000-7e52b90564e14a9bfb9e2019-02-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 10V, Negative-QTOFsplash10-00li-0059000000-951a5f97c523abed2dbc2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 20V, Negative-QTOFsplash10-00kb-2936000000-ad8508fe5d137c7c62b02021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 40V, Negative-QTOFsplash10-0076-2951000000-edc264cfd7d7cc48b18b2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 10V, Positive-QTOFsplash10-00ks-0195000000-f475a6e7b1f959cd79042021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 20V, Positive-QTOFsplash10-0002-1390000000-abe1846fbee337e380b12021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 7'-Carboxy-gamma-chromanol 40V, Positive-QTOFsplash10-0fdo-5900000000-892525c38c02793675e12021-09-25Wishart 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 ID74854294
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound134159053
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDCE5721
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 ]