Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2009-04-06 16:21:04 UTC |
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Update Date | 2023-02-21 17:17:44 UTC |
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HMDB ID | HMDB0012210 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Dihydrolipoate |
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Description | Dihydrolipoic acid is an organic compound that is the reduced form of lipoic acid. This carboxylic acid features a pair of thiol groups. It is optically active but only the R-enantiomer is biochemically significant. The lipoic acid/dihydrolipoic acid pair participate in a variety of biochemical transformations.( from Wiki). Inside the cell, alpha lipoic acid is readily reduced or broken down to dihydrolipoic acid. Dihydrolipoic acid is even more potent than alpha lipoic acid, neutralizing free radicals, preventing them from causing harm. It directly destroys damaging superoxide radicals, hydroperoxy radicals and hydroxyl radicals. It has been shown in vitro that dihydrolipoate (DL-6,8-dithioloctanoic acid) has antioxidant activity against microsomal lipid peroxidation.Dihydrolipoate is tested for its neuroprotective activity using models of hypoxic and excitotoxic neuronal damage in vitro and rodent models of cerebral ischemia in vivo. Dihydrolipoate, similarly to dimethylthiourea, is able to protect neurons against ischemic damage by diminishing the accumulation of reactive oxygen species within the cerebral tissue.(PMID: 1345759 ). |
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Structure | InChI=1S/C8H16O2S2/c9-8(10)4-2-1-3-7(12)5-6-11/h7,11-12H,1-6H2,(H,9,10) |
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Synonyms | Value | Source |
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6,8-Bis-sulfanyloctanoic acid | ChEBI | 6,8-Dihydrothioctic acid | ChEBI | 6,8-Dimercapto-octanoic acid | ChEBI | 6,8-Dimercaptooctanoic acid | ChEBI | DHLA | ChEBI | Dihydro-alpha-lipoic acid | ChEBI | Dihydro-lipoic acid | ChEBI | Dihydrothioctic acid | ChEBI | Dihydrolipoic acid | Kegg | 6,8-Bis-sulfanyloctanoate | Generator | 6,8-Bis-sulphanyloctanoate | Generator | 6,8-Bis-sulphanyloctanoic acid | Generator | 6,8-Dihydrothioctate | Generator | 6,8-Dimercapto-octanoate | Generator | 6,8-Dimercaptooctanoate | Generator | Dihydro-a-lipoate | Generator | Dihydro-a-lipoic acid | Generator | Dihydro-alpha-lipoate | Generator | Dihydro-α-lipoate | Generator | Dihydro-α-lipoic acid | Generator | Dihydro-lipoate | Generator | Dihydrothioctate | Generator | 6,8-Disulfanyloctanoate | HMDB | 6,8-Disulfanyloctanoic acid | HMDB | D,L-Dihydrolipoate | HMDB | D,L-Dihydrolipoic acid | HMDB | dihydro-DL-alpha-Lipoate | HMDB | dihydro-DL-alpha-Lipoic acid | HMDB | dihydro-Thioctic acid | HMDB | dihydro-Thiocytic acid | HMDB | DL-dihydro-a-6-Thioctic acid | HMDB | DL-dihydro-alpha-6-Thioctic acid | HMDB | Reduced DL-6,8-thioctic acid | HMDB | Reduced lipoate | HMDB | Reduced lipoic acid | HMDB | Reduced thioctic acid | HMDB | Dihydrolipoic acid, (+-)-isomer | MeSH, HMDB | Dihydrolipoic acid, sodium salt | MeSH, HMDB |
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Chemical Formula | C8H16O2S2 |
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Average Molecular Weight | 208.341 |
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Monoisotopic Molecular Weight | 208.059171136 |
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IUPAC Name | 6,8-disulfanyloctanoic acid |
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Traditional Name | dihydrolipoic acid |
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CAS Registry Number | 462-20-4 |
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SMILES | OC(=O)CCCCC(S)CCS |
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InChI Identifier | InChI=1S/C8H16O2S2/c9-8(10)4-2-1-3-7(12)5-6-11/h7,11-12H,1-6H2,(H,9,10) |
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InChI Key | IZFHEQBZOYJLPK-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as medium-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Fatty Acyls |
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Sub Class | Fatty acids and conjugates |
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Direct Parent | Medium-chain fatty acids |
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Alternative Parents | |
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Substituents | - Medium-chain fatty acid
- Thia fatty acid
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Alkylthiol
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organosulfur compound
- Organooxygen compound
- Carbonyl group
- Aliphatic acyclic compound
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Molecular Framework | Aliphatic acyclic 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 | |
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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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Dihydrolipoate,1TMS,isomer #1 | C[Si](C)(C)OC(=O)CCCCC(S)CCS | 1917.3 | Semi standard non polar | 33892256 | Dihydrolipoate,1TMS,isomer #2 | C[Si](C)(C)SC(CCS)CCCCC(=O)O | 1978.8 | Semi standard non polar | 33892256 | Dihydrolipoate,1TMS,isomer #3 | C[Si](C)(C)SCCC(S)CCCCC(=O)O | 2027.9 | Semi standard non polar | 33892256 | Dihydrolipoate,2TMS,isomer #1 | C[Si](C)(C)OC(=O)CCCCC(CCS)S[Si](C)(C)C | 1994.1 | Semi standard non polar | 33892256 | Dihydrolipoate,2TMS,isomer #1 | C[Si](C)(C)OC(=O)CCCCC(CCS)S[Si](C)(C)C | 2009.5 | Standard non polar | 33892256 | Dihydrolipoate,2TMS,isomer #1 | C[Si](C)(C)OC(=O)CCCCC(CCS)S[Si](C)(C)C | 2285.5 | Standard polar | 33892256 | Dihydrolipoate,2TMS,isomer #2 | C[Si](C)(C)OC(=O)CCCCC(S)CCS[Si](C)(C)C | 2052.5 | Semi standard non polar | 33892256 | Dihydrolipoate,2TMS,isomer #2 | C[Si](C)(C)OC(=O)CCCCC(S)CCS[Si](C)(C)C | 2010.4 | Standard non polar | 33892256 | Dihydrolipoate,2TMS,isomer #2 | C[Si](C)(C)OC(=O)CCCCC(S)CCS[Si](C)(C)C | 2389.1 | Standard polar | 33892256 | Dihydrolipoate,2TMS,isomer #3 | C[Si](C)(C)SCCC(CCCCC(=O)O)S[Si](C)(C)C | 2127.0 | Semi standard non polar | 33892256 | Dihydrolipoate,2TMS,isomer #3 | C[Si](C)(C)SCCC(CCCCC(=O)O)S[Si](C)(C)C | 2129.4 | Standard non polar | 33892256 | Dihydrolipoate,2TMS,isomer #3 | C[Si](C)(C)SCCC(CCCCC(=O)O)S[Si](C)(C)C | 2490.6 | Standard polar | 33892256 | Dihydrolipoate,3TMS,isomer #1 | C[Si](C)(C)OC(=O)CCCCC(CCS[Si](C)(C)C)S[Si](C)(C)C | 2171.9 | Semi standard non polar | 33892256 | Dihydrolipoate,3TMS,isomer #1 | C[Si](C)(C)OC(=O)CCCCC(CCS[Si](C)(C)C)S[Si](C)(C)C | 2206.3 | Standard non polar | 33892256 | Dihydrolipoate,3TMS,isomer #1 | C[Si](C)(C)OC(=O)CCCCC(CCS[Si](C)(C)C)S[Si](C)(C)C | 2193.5 | Standard polar | 33892256 | Dihydrolipoate,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(S)CCS | 2139.8 | Semi standard non polar | 33892256 | Dihydrolipoate,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)SC(CCS)CCCCC(=O)O | 2211.1 | Semi standard non polar | 33892256 | Dihydrolipoate,1TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)SCCC(S)CCCCC(=O)O | 2264.2 | Semi standard non polar | 33892256 | Dihydrolipoate,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(CCS)S[Si](C)(C)C(C)(C)C | 2501.6 | Semi standard non polar | 33892256 | Dihydrolipoate,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(CCS)S[Si](C)(C)C(C)(C)C | 2446.5 | Standard non polar | 33892256 | Dihydrolipoate,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(CCS)S[Si](C)(C)C(C)(C)C | 2477.7 | Standard polar | 33892256 | Dihydrolipoate,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(S)CCS[Si](C)(C)C(C)(C)C | 2563.6 | Semi standard non polar | 33892256 | Dihydrolipoate,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(S)CCS[Si](C)(C)C(C)(C)C | 2451.7 | Standard non polar | 33892256 | Dihydrolipoate,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(S)CCS[Si](C)(C)C(C)(C)C | 2576.3 | Standard polar | 33892256 | Dihydrolipoate,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)SCCC(CCCCC(=O)O)S[Si](C)(C)C(C)(C)C | 2647.4 | Semi standard non polar | 33892256 | Dihydrolipoate,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)SCCC(CCCCC(=O)O)S[Si](C)(C)C(C)(C)C | 2558.9 | Standard non polar | 33892256 | Dihydrolipoate,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)SCCC(CCCCC(=O)O)S[Si](C)(C)C(C)(C)C | 2588.8 | Standard polar | 33892256 | Dihydrolipoate,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(CCS[Si](C)(C)C(C)(C)C)S[Si](C)(C)C(C)(C)C | 2898.9 | Semi standard non polar | 33892256 | Dihydrolipoate,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(CCS[Si](C)(C)C(C)(C)C)S[Si](C)(C)C(C)(C)C | 2816.2 | Standard non polar | 33892256 | Dihydrolipoate,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)CCCCC(CCS[Si](C)(C)C(C)(C)C)S[Si](C)(C)C(C)(C)C | 2522.9 | Standard polar | 33892256 |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Experimental GC-MS | GC-MS Spectrum - Dihydrolipoate GC-EI-TOF (Non-derivatized) | splash10-0007-5920000000-99648df42c67f7327a1d | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | Experimental GC-MS | GC-MS Spectrum - Dihydrolipoate GC-EI-TOF (Non-derivatized) | splash10-0007-5920000000-99648df42c67f7327a1d | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Dihydrolipoate GC-MS (Non-derivatized) - 70eV, Positive | splash10-0kij-5900000000-7564ff734a37b263a7ac | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Dihydrolipoate GC-MS (1 TMS) - 70eV, Positive | splash10-00di-9520000000-35f52ace937d40f6ba6e | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Dihydrolipoate GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Dihydrolipoate 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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Experimental LC-MS/MS | LC-MS/MS Spectrum - Dihydrolipoate 20V, Positive-QTOF | splash10-00di-0900000000-832657635f2c81515eac | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Dihydrolipoate 20V, Negative-QTOF | splash10-00di-1900000000-832657635f2c81515eac | 2021-09-20 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Dihydrolipoate 10V, Negative-QTOF | splash10-0ab9-0690000000-bb3d2691ed5ceb749b8c | 2021-09-20 | HMDB team, MONA | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 10V, Positive-QTOF | splash10-0a4l-0920000000-203769a6e5514dfdacce | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 20V, Positive-QTOF | splash10-0bvl-0900000000-e0d6ca4b105aaeae3f10 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 40V, Positive-QTOF | splash10-06vi-9500000000-30fa7bade921a70952d5 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 10V, Negative-QTOF | splash10-0ab9-0960000000-352daa80c3d73329d4b8 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 20V, Negative-QTOF | splash10-0a4i-1930000000-dee930722526f680e10d | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 40V, Negative-QTOF | splash10-053r-9300000000-c53948709f447f46266c | 2017-09-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 10V, Positive-QTOF | splash10-0a4i-0930000000-266230745999efddf6dd | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 20V, Positive-QTOF | splash10-0ufr-2900000000-24ea3b6c12cfdd8e2cac | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 40V, Positive-QTOF | splash10-0006-9300000000-a87ea4acfc88c77960a6 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 10V, Negative-QTOF | splash10-0a4i-0190000000-212b987ce9dfd82aaeb6 | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 20V, Negative-QTOF | splash10-0a4r-3920000000-1948f3bf848db6d6ef45 | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dihydrolipoate 40V, Negative-QTOF | splash10-001l-9400000000-39e9224d6c07b378fb5a | 2021-09-25 | Wishart Lab | View Spectrum |
IR SpectraSpectrum Type | Description | Deposition Date | Source | View |
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Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-) | 2023-02-03 | FELIX lab | View Spectrum | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+) | 2023-02-03 | FELIX lab | View Spectrum | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-03 | FELIX lab | View Spectrum |
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General References | - Prehn JH, Karkoutly C, Nuglisch J, Peruche B, Krieglstein J: Dihydrolipoate reduces neuronal injury after cerebral ischemia. J Cereb Blood Flow Metab. 1992 Jan;12(1):78-87. [PubMed:1345759 ]
- 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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