Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2009-07-25 00:02:55 UTC |
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Update Date | 2022-03-07 02:51:26 UTC |
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HMDB ID | HMDB0012559 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | 13'-Hydroxy-alpha-tocopherol |
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Description | 13'-hydroxy-alpha-tocopherol is the precursor in dehydrogenation to 13'-carboxy-alpha-tocopherol by an unidentified microsomal enzyme(s) probably via an aldehyde intermediate. The tocopherols ( a-tocopherol , b-tocopherol ,r-tocopherol and d-tocopherol ) and their corresponding tocotrienols are synthesized by plants and have vitamin E antixoidant activity (see pathway vitamin E biosynthesis ). They differ in the number and location of methyl groups on the chromanol ring. The naturally occurring form of a-tocopherol is (2R,4'R,8'R)-a-tocopherol (synonym (R,R,R)-a-tocopherol). Synthetic a-tocopherols are a racemic mixture of eight different R and S stereoisomers. Only the 2R forms are recognized as meeting human requirements. The in vivo function of vitamin E is to scavenge peroxyl radicals via its phenolic (chromanol) hydroxyl group, thus protecting lipids against free radical-catalyzed peroxidation. The tocopheryl radical formed can then be reduced by reductants such as L-ascorbate. Other major products of a-tocopherol oxidation include α-tocopherylquinone and epoxy-a-tocopherols. The metabolites a-tocopheronic acid and its lactone, known as the Simon metabolites, are generally believed to be artefacts. In addition to these oxidation products, the other major class of tocopherol metabolites is the carboxyethyl-hydroxychromans.These metabolites are produced in significant amounts in response to excess vitamin E ingestion. Vitamin E is fat-soluble and its utilization requires intestinal fat absorption mechanisms. It is secreted from the intestine into the lymphatic system in chylomicrons which subsequently enter the plasma. Lipolysis of these chylomicrons can result in delivery of vitamin E to tissues, transfer to high-density lipoproteins (and subsequently to other lipoproteins via the phospholipid exchange protein), or retention in chylomicron remnants. These remnants are taken up by the liver. Natural (R,R,R)-α-tocopherol and synthetic 2R-α-tocopherols are then preferentially secreted from the liver into plasma as a result of the specificity of the α-tocopherol transfer protein. This protein, along with the metabolism of excess vitamin E in the liver and excretion into urine and bile, mediate the supply of a-tocopherol in plasma and tissues. | Read more...
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Structure | CC(CO)CCC[C@@H](C)CCC[C@@H](C)CCC[C@]1(C)CCC2=C(O1)C(C)=C(C)C(O)=C2C InChI=1S/C29H50O3/c1-20(13-9-14-22(3)19-30)11-8-12-21(2)15-10-17-29(7)18-16-26-25(6)27(31)23(4)24(5)28(26)32-29/h20-22,30-31H,8-19H2,1-7H3/t20-,21+,22?,29+/m0/s1 |
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Synonyms | Value | Source |
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13-OH-alpha-Tocopherol | ChEBI | 13-OH-a-Tocopherol | Generator | 13-OH-Α-tocopherol | Generator | 13'-Hydroxy-a-tocopherol | Generator | 13'-Hydroxy-α-tocopherol | Generator | 13-Hydroxy-a-tocopherol | HMDB | 13-Hydroxy-α-tocopherol | HMDB | 13'-Hydroxy-alpha-tocopherol | ChEBI |
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Chemical Formula | C29H50O3 |
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Average Molecular Weight | 446.7055 |
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Monoisotopic Molecular Weight | 446.375995466 |
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IUPAC Name | (2R)-2-[(4R,8S)-13-hydroxy-4,8,12-trimethyltridecyl]-2,5,7,8-tetramethyl-3,4-dihydro-2H-1-benzopyran-6-ol |
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Traditional Name | (2R)-2-[(4R,8S)-13-hydroxy-4,8,12-trimethyltridecyl]-2,5,7,8-tetramethyl-3,4-dihydro-1-benzopyran-6-ol |
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CAS Registry Number | Not Available |
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SMILES | CC(CO)CCC[C@@H](C)CCC[C@@H](C)CCC[C@]1(C)CCC2=C(O1)C(C)=C(C)C(O)=C2C |
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InChI Identifier | InChI=1S/C29H50O3/c1-20(13-9-14-22(3)19-30)11-8-12-21(2)15-10-17-29(7)18-16-26-25(6)27(31)23(4)24(5)28(26)32-29/h20-22,30-31H,8-19H2,1-7H3/t20-,21+,22?,29+/m0/s1 |
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InChI Key | URYLCCKXLNXSRS-XIRVVSDESA-N |
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Chemical Taxonomy |
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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. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Prenol lipids |
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Sub Class | Quinone and hydroquinone lipids |
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Direct Parent | Tocopherols |
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Alternative Parents | |
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Substituents | - Tocopherol
- Diterpenoid
- Long chain fatty alcohol
- Chromane
- Benzopyran
- 1-benzopyran
- Fatty alcohol
- Alkyl aryl ether
- Fatty acyl
- Benzenoid
- Organoheterocyclic compound
- Ether
- Oxacycle
- Organic oxygen compound
- Alcohol
- Hydrocarbon derivative
- Organooxygen compound
- Primary alcohol
- Aromatic heteropolycyclic compound
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Molecular Framework | Aromatic heteropolycyclic compounds |
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External Descriptors | |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | |
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Role | |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | | Show more...
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Kovats Retention IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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13'-Hydroxy-alpha-tocopherol,1TMS,isomer #1 | CC1=C(C)C2=C(CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)CCCC(C)CO[Si](C)(C)C)O2)C(C)=C1O | 3275.7 | Semi standard non polar | 33892256 | 13'-Hydroxy-alpha-tocopherol,1TMS,isomer #2 | CC1=C(C)C2=C(CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)CCCC(C)CO)O2)C(C)=C1O[Si](C)(C)C | 3348.7 | Semi standard non polar | 33892256 | 13'-Hydroxy-alpha-tocopherol,2TMS,isomer #1 | CC1=C(C)C2=C(CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)CCCC(C)CO[Si](C)(C)C)O2)C(C)=C1O[Si](C)(C)C | 3304.9 | Semi standard non polar | 33892256 | 13'-Hydroxy-alpha-tocopherol,1TBDMS,isomer #1 | CC1=C(C)C2=C(CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)CCCC(C)CO[Si](C)(C)C(C)(C)C)O2)C(C)=C1O | 3535.0 | Semi standard non polar | 33892256 | 13'-Hydroxy-alpha-tocopherol,1TBDMS,isomer #2 | CC1=C(C)C2=C(CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)CCCC(C)CO)O2)C(C)=C1O[Si](C)(C)C(C)(C)C | 3606.9 | Semi standard non polar | 33892256 | 13'-Hydroxy-alpha-tocopherol,2TBDMS,isomer #1 | CC1=C(C)C2=C(CC[C@@](C)(CCC[C@H](C)CCC[C@H](C)CCCC(C)CO[Si](C)(C)C(C)(C)C)O2)C(C)=C1O[Si](C)(C)C(C)(C)C | 3808.1 | Semi standard non polar | 33892256 |
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Spectra |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - 13'-Hydroxy-alpha-tocopherol GC-MS (Non-derivatized) - 70eV, Positive | splash10-05pk-2796500000-696d167e7dff626a2856 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 13'-Hydroxy-alpha-tocopherol GC-MS (2 TMS) - 70eV, Positive | splash10-004i-2445390000-69dfb80c7cbe0f4cc3d9 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 13'-Hydroxy-alpha-tocopherol GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - 13'-Hydroxy-alpha-tocopherol GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 10V, Positive-QTOF | splash10-00mk-0421900000-c2e2838b4fed1944830b | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 20V, Positive-QTOF | splash10-014i-0910100000-ae48ef0eac05453a364a | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 40V, Positive-QTOF | splash10-014i-1910000000-cac243bd70399ac13a77 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 10V, Negative-QTOF | splash10-0002-0000900000-e8a490fcd22573d72002 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 20V, Negative-QTOF | splash10-01ot-0410900000-2df09762b86f7f4ffb1d | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 40V, Negative-QTOF | splash10-0gwb-0923300000-2fb95536d042c7aef0a7 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 10V, Positive-QTOF | splash10-0002-2115900000-099be936055d32b60bb0 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 20V, Positive-QTOF | splash10-014j-6729200000-ecfbf5f04269af7045d0 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 40V, Positive-QTOF | splash10-0aor-9532000000-a1c54a6c597c9eeed41e | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 10V, Negative-QTOF | splash10-002b-0000900000-fce93c2306a34f832c4f | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 20V, Negative-QTOF | splash10-02ta-0411900000-a8a991079c3018f0635c | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 13'-Hydroxy-alpha-tocopherol 40V, Negative-QTOF | splash10-0bvi-0469700000-7a2f459658cb79c8561c | 2021-09-23 | Wishart Lab | View Spectrum |
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Biological Properties |
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Cellular Locations | |
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Biospecimen Locations | Not Available |
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Tissue Locations | Not Available |
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Pathways | |
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Normal Concentrations |
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Abnormal Concentrations |
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| Not Available |
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Associated Disorders and Diseases |
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Disease References | None |
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Associated OMIM IDs | None |
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External Links |
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DrugBank ID | Not Available |
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Phenol Explorer Compound ID | Not Available |
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FooDB ID | FDB029125 |
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KNApSAcK ID | Not Available |
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Chemspider ID | 34999549 |
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KEGG Compound ID | Not Available |
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BioCyc ID | CPD-11960 |
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BiGG ID | Not Available |
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Wikipedia Link | Not Available |
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METLIN ID | Not Available |
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PubChem Compound | 53481465 |
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PDB ID | Not Available |
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ChEBI ID | 84962 |
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Food Biomarker Ontology | Not Available |
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VMH ID | CE5842 |
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MarkerDB ID | Not Available |
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Good Scents ID | Not Available |
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References |
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Synthesis Reference | Not Available |
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Material Safety Data Sheet (MSDS) | Not Available |
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General References | - Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
- Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
- Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
- Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
- Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.
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