Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2017-09-08 16:29:35 UTC |
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Update Date | 2022-11-30 19:24:24 UTC |
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HMDB ID | HMDB0112142 |
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Secondary Accession Numbers | None |
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Metabolite Identification |
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Common Name | FAHFA(18:1(9Z)/8-O-18:0) |
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Description | Branched fatty acid esters of hydroxy fatty acids (FAHFAs) are endogenous lipids found in adipose tissue and serum that correlate with insulin sensitivity and are reduced in insulin-resistant humans. Structurally, they are characterized by a branched ester linkage between a fatty acid and a hydroxy-fatty acid. Different positions of the branched ester on the hydroxy fatty acid results in different isomers. FAHFA(18:1(9Z)/8-O-18:0), in particular, is formed from the condensation of the carboxy group of oleic acid with the hydroxy group of 8-hydroxyoctadecanoic acid. It is alternatively named 8-OAHSA since it is the 8-hydroxy isomer of the OAHSA (oleic acid-hydroxystearic acid) family. |
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Structure | [H]\C(CCCCCCCC)=C(/[H])CCCCCCCC(=O)OC(CCCCCCCCCC)CCCCCCC(O)=O InChI=1S/C36H68O4/c1-3-5-7-9-11-13-14-15-16-17-18-19-21-23-29-33-36(39)40-34(31-27-24-25-28-32-35(37)38)30-26-22-20-12-10-8-6-4-2/h15-16,34H,3-14,17-33H2,1-2H3,(H,37,38)/b16-15- |
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Synonyms | Value | Source |
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8-OAHSA | SMPDB, HMDB | 8-(oleoyloxy)octadecanoic acid | SMPDB, HMDB | 8-(oleoyloxy)stearic acid | SMPDB, HMDB | oleic acid-8-hydroxystearic acid | SMPDB, HMDB | FAHFA(18:1(9Z)/8-O-18:0) | SMPDB |
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Chemical Formula | C36H68O4 |
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Average Molecular Weight | 564.936 |
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Monoisotopic Molecular Weight | 564.51176067 |
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IUPAC Name | 8-[(9Z)-octadec-9-enoyloxy]octadecanoic acid |
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Traditional Name | 8-[(9Z)-octadec-9-enoyloxy]octadecanoic acid |
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CAS Registry Number | Not Available |
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SMILES | [H]\C(CCCCCCCC)=C(/[H])CCCCCCCC(=O)OC(CCCCCCCCCC)CCCCCCC(O)=O |
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InChI Identifier | InChI=1S/C36H68O4/c1-3-5-7-9-11-13-14-15-16-17-18-19-21-23-29-33-36(39)40-34(31-27-24-25-28-32-35(37)38)30-26-22-20-12-10-8-6-4-2/h15-16,34H,3-14,17-33H2,1-2H3,(H,37,38)/b16-15- |
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InChI Key | YVQCSUUWPYOYGC-NXVVXOECSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 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 | Long-chain fatty acids |
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Alternative Parents | |
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Substituents | - Long-chain fatty acid
- Fatty acid ester
- Dicarboxylic acid or derivatives
- Carboxylic acid ester
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Aliphatic acyclic compound
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Molecular Framework | Aliphatic acyclic 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 | Not Available |
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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 IndicesUnderivatizedDerivatized |
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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 - FAHFA(18:1(9Z)/8-O-18:0) GC-MS (1 TMS) - 70eV, Positive | splash10-0079-9574264000-cc8bd883b1a9cff6b0b2 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) GC-MS ("FAHFA(18:1(9Z)/8-O-18:0),1TMS,#1" TMS) - 70eV, Positive | Not Available | 2021-10-14 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) GC-MS (TBDMS_1_1) - 70eV, Positive | Not Available | 2021-10-15 | 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 - FAHFA(18:1(9Z)/8-O-18:0) 10V, Positive-QTOF | splash10-014j-0050090000-a9ffaa1efd1a37fd91e6 | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) 20V, Positive-QTOF | splash10-015i-0190020000-965e31082d365428fe50 | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) 40V, Positive-QTOF | splash10-0076-4290000000-e2372616dfe0269c9b6e | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) 10V, Negative-QTOF | splash10-03di-0040090000-05d87632442c18ea08ad | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) 20V, Negative-QTOF | splash10-01pk-0190040000-ba6ddcf00e8341667987 | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) 40V, Negative-QTOF | splash10-0a5c-4290000000-6d432e17beba28346a0b | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) 10V, Negative-QTOF | splash10-03di-0000090000-d0c7b05779e130b6f9f3 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) 20V, Negative-QTOF | splash10-03di-0000090000-d0c7b05779e130b6f9f3 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - FAHFA(18:1(9Z)/8-O-18:0) 40V, Negative-QTOF | splash10-03sk-0090030000-de277e22ab717964c88b | 2021-09-24 | Wishart Lab | View Spectrum |
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General References | - Yore MM, Syed I, Moraes-Vieira PM, Zhang T, Herman MA, Homan EA, Patel RT, Lee J, Chen S, Peroni OD, Dhaneshwar AS, Hammarstedt A, Smith U, McGraw TE, Saghatelian A, Kahn BB: Discovery of a class of endogenous mammalian lipids with anti-diabetic and anti-inflammatory effects. Cell. 2014 Oct 9;159(2):318-32. doi: 10.1016/j.cell.2014.09.035. [PubMed:25303528 ]
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