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 00:07:34 UTC |
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Update Date | 2021-09-14 15:41:20 UTC |
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HMDB ID | HMDB0012799 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | 5'-Carboxy-gamma-chromanol |
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Description | 5'-Carboxy-gamma-tocopherol is a dehydrogenation carboxylate product of 5'-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. |
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Structure | C[C@@H](CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O1)C(O)=O InChI=1S/C18H26O4/c1-11(17(20)21)6-5-8-18(4)9-7-14-10-15(19)12(2)13(3)16(14)22-18/h10-11,19H,5-9H2,1-4H3,(H,20,21)/t11-,18+/m0/s1 |
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Synonyms | Value | Source |
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(2S)-5-[(2R)-6-Hydroxy-2,7,8-trimethyl-3,4-dihydro-2H-1-benzopyran-2-yl]-2-methylpentanoate | HMDB | Γ-CMBHC | HMDB | gamma-CMBHC | HMDB | γ-Carboxymethylbutyl hydroxychroman | HMDB | γ-Carboxymethylbutylhydroxychroman | HMDB | gamma-Carboxymethylbutyl hydroxychroman | HMDB | gamma-Carboxymethylbutylhydroxychroman | HMDB |
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Chemical Formula | C18H26O4 |
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Average Molecular Weight | 306.402 |
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Monoisotopic Molecular Weight | 306.183109317 |
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IUPAC Name | (2S)-5-[(2R)-6-hydroxy-2,7,8-trimethyl-3,4-dihydro-2H-1-benzopyran-2-yl]-2-methylpentanoic acid |
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Traditional Name | (2S)-5-[(2R)-6-hydroxy-2,7,8-trimethyl-3,4-dihydro-1-benzopyran-2-yl]-2-methylpentanoic acid |
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CAS Registry Number | 1221262-11-8 |
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SMILES | C[C@@H](CCC[C@]1(C)CCC2=CC(O)=C(C)C(C)=C2O1)C(O)=O |
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InChI Identifier | InChI=1S/C18H26O4/c1-11(17(20)21)6-5-8-18(4)9-7-14-10-15(19)12(2)13(3)16(14)22-18/h10-11,19H,5-9H2,1-4H3,(H,20,21)/t11-,18+/m0/s1 |
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InChI Key | CNGKBUHOCIWLHJ-BBATYDOGSA-N |
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Chemical Taxonomy |
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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. |
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Kingdom | Organic compounds |
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Super Class | Organoheterocyclic compounds |
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Class | Benzopyrans |
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Sub Class | 1-benzopyrans |
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Direct Parent | 1-benzopyrans |
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Alternative Parents | |
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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
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Molecular Framework | Aromatic heteropolycyclic compounds |
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External Descriptors | Not Available |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | Not Available |
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Role | Not Available |
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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 | |
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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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5'-Carboxy-gamma-chromanol,1TMS,isomer #1 | CC1=C(O[Si](C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)C(=O)O)OC2=C1C | 2528.6 | Semi standard non polar | 33892256 | 5'-Carboxy-gamma-chromanol,1TMS,isomer #2 | CC1=C(O)C=C2CC[C@@](C)(CCC[C@H](C)C(=O)O[Si](C)(C)C)OC2=C1C | 2453.6 | Semi standard non polar | 33892256 | 5'-Carboxy-gamma-chromanol,2TMS,isomer #1 | CC1=C(O[Si](C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)C(=O)O[Si](C)(C)C)OC2=C1C | 2498.8 | Semi standard non polar | 33892256 | 5'-Carboxy-gamma-chromanol,1TBDMS,isomer #1 | CC1=C(O[Si](C)(C)C(C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)C(=O)O)OC2=C1C | 2787.9 | Semi standard non polar | 33892256 | 5'-Carboxy-gamma-chromanol,1TBDMS,isomer #2 | CC1=C(O)C=C2CC[C@@](C)(CCC[C@H](C)C(=O)O[Si](C)(C)C(C)(C)C)OC2=C1C | 2725.8 | Semi standard non polar | 33892256 | 5'-Carboxy-gamma-chromanol,2TBDMS,isomer #1 | CC1=C(O[Si](C)(C)C(C)(C)C)C=C2CC[C@@](C)(CCC[C@H](C)C(=O)O[Si](C)(C)C(C)(C)C)OC2=C1C | 2985.2 | Semi standard non polar | 33892256 |
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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 - 5'-Carboxy-gamma-chromanol 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 - 5'-Carboxy-gamma-chromanol 10V, Positive-QTOF | splash10-0pbi-0795000000-2a760615a1137de9e063 | 2019-02-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 20V, Positive-QTOF | splash10-0udi-1920000000-0b6e86db1ccc007ae9ae | 2019-02-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 40V, Positive-QTOF | splash10-0pb9-5900000000-a1641967f03e449c84ae | 2019-02-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 10V, Negative-QTOF | splash10-0a4i-0129000000-ca2b2a47f99db6cbbdcf | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 20V, Negative-QTOF | splash10-0bta-1895000000-31aed0c986eda055c878 | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 40V, Negative-QTOF | splash10-0002-7970000000-84306781d9a92ffbebff | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 10V, Negative-QTOF | splash10-0a4i-0009000000-f8a5e82e8af4d5edf5e8 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 20V, Negative-QTOF | splash10-0lxt-1974000000-2e3c70bb39be5f027e99 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 40V, Negative-QTOF | splash10-006w-0940000000-16b1c3ee83486876f9af | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 10V, Positive-QTOF | splash10-08g0-0192000000-c340a46203f3dd7a4c1b | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 20V, Positive-QTOF | splash10-06xx-2290000000-f0e4037b879a4f1c1eb1 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 5'-Carboxy-gamma-chromanol 40V, Positive-QTOF | splash10-0pvu-6900000000-6fcdce7d23a6a930918a | 2021-09-24 | Wishart Lab | View Spectrum |
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General References | - Birringer M, Pfluger P, Kluth D, Landes N, Brigelius-Flohe R: Identities and differences in the metabolism of tocotrienols and tocopherols in HepG2 cells. J Nutr. 2002 Oct;132(10):3113-8. [PubMed:12368403 ]
- 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 ]
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