| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2014-04-11 22:16:49 UTC |
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| Update Date | 2021-09-14 14:57:35 UTC |
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| HMDB ID | HMDB0061650 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 9,10-Epoxyoctadecanoic acid |
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| Description | 9,10-Epoxyoctadecanoic acid (CAS: 3233-92-9), also known as 9,10-epoxystearate, belongs to the class of organic compounds known as linoleic acids and derivatives. These are derivatives of linoleic acid. Linoleic acid is a polyunsaturated omega-6 18 carbon long fatty acid, with two CC double bonds at the 9- and 12-positions. 9,10-Epoxyoctadecanoic acid is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. 9,10-Epoxyoctadecanoic acid is an epoxy fatty acid. Epoxy fatty acids bear an oxirane ring that shares a CC-bond with the aliphatic chain. The cis-9,10-epoxyoctadecanoic acid has been found in liver microsomes and is believed to originate from CYP-catalyzed epoxidation of oleic acid. |
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| Structure | [H][C@@]1(CCCCCCCCO)O[C@]1([H])CCCCCCCC(O)=O InChI=1S/C18H34O4/c19-15-11-7-2-1-4-8-12-16-17(22-16)13-9-5-3-6-10-14-18(20)21/h16-17,19H,1-15H2,(H,20,21)/t16-,17+/m0/s1 |
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| Synonyms | | Value | Source |
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| (9R,10S)-18-Hydroxy-9,10-epoxystearic acid | ChEBI | | 18-Hydroxy-(9R,10S)-9,10-epoxystearic acid | ChEBI | | 18-Hydroxy-(9R,10S)-epoxy-octadecanoic acid | ChEBI | | (9R,10S)-18-Hydroxy-9,10-epoxystearate | Generator | | 18-Hydroxy-(9R,10S)-9,10-epoxystearate | Generator | | 18-Hydroxy-(9R,10S)-epoxy-octadecanoate | Generator | | 9,10-Epoxyoctadecanoate | Generator | | (9R,10S)-9,10-Epoxy-18-hydroxyoctadecanoate | HMDB | | 18-Hydroxy-9,10-epoxyoctadecanoic acid | HMDB | | 18-Hydroxy-9,10-epoxystearic acid | HMDB | | 3-(8-Hydroxyoctyl)-2-oxiraneoctanoic acid | HMDB | | 9,10-Epoxy-18-hydroxyoctadecanoic acid | HMDB | | 9,10-Epoxy-18-hydroxystearate | HMDB | | 9R,10S-Epoxy-18-hydroxystearate | HMDB | | Omega-hydroxy-9,10-epoxystearic acid | HMDB | | Ω-hydroxy-9,10-epoxystearic acid | HMDB | | 9,10-Epoxyoctadecanoic acid | HMDB |
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| Chemical Formula | C18H34O4 |
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| Average Molecular Weight | 314.466 |
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| Monoisotopic Molecular Weight | 314.245709575 |
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| IUPAC Name | 8-[(2R,3S)-3-(8-hydroxyoctyl)oxiran-2-yl]octanoic acid |
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| Traditional Name | 8-[(2R,3S)-3-(8-hydroxyoctyl)oxiran-2-yl]octanoic acid |
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| CAS Registry Number | 154966-80-0 |
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| SMILES | OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(O)=O |
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| InChI Identifier | InChI=1S/C18H34O4/c19-15-11-7-2-1-4-8-12-16-17(22-16)13-9-5-3-6-10-14-18(20)21/h16-17,19H,1-15H2,(H,20,21)/t16-,17+/m0/s1 |
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| InChI Key | ITTPZDMHCNGAGQ-DLBZAZTESA-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
- Epoxy fatty acid
- Heterocyclic fatty acid
- Hydroxy fatty acid
- Carboxylic acid derivative
- Carboxylic acid
- Dialkyl ether
- Oxirane
- Ether
- Monocarboxylic acid or derivatives
- Oxacycle
- Organoheterocyclic compound
- Organic oxide
- Hydrocarbon derivative
- Carbonyl group
- Organooxygen compound
- Primary alcohol
- Alcohol
- Organic oxygen compound
- Aliphatic heteromonocyclic compound
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| Molecular Framework | Aliphatic heteromonocyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Not Available | Not Available |
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| Physical Properties |
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| State | Not Available |
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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 Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm √ó 2.1 mm; 1.7 Œºmparticle diameter). Predicted by Afia on May 17, 2022. | 8.97 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 16.5893 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.58 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2785.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 333.3 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 201.4 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 176.5 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 521.2 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 760.2 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 608.5 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 161.6 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1585.5 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 509.1 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1632.4 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 575.3 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 408.3 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 466.5 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 349.1 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 30.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 9,10-Epoxyoctadecanoic acid,1TMS,isomer #1 | C[Si](C)(C)OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(=O)O | 2641.1 | Semi standard non polar | 33892256 | | 9,10-Epoxyoctadecanoic acid,1TMS,isomer #2 | C[Si](C)(C)OC(=O)CCCCCCC[C@H]1O[C@H]1CCCCCCCCO | 2589.4 | Semi standard non polar | 33892256 | | 9,10-Epoxyoctadecanoic acid,2TMS,isomer #1 | C[Si](C)(C)OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(=O)O[Si](C)(C)C | 2683.0 | Semi standard non polar | 33892256 | | 9,10-Epoxyoctadecanoic acid,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(=O)O | 2900.7 | Semi standard non polar | 33892256 | | 9,10-Epoxyoctadecanoic acid,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)CCCCCCC[C@H]1O[C@H]1CCCCCCCCO | 2854.9 | Semi standard non polar | 33892256 | | 9,10-Epoxyoctadecanoic acid,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(=O)O[Si](C)(C)C(C)(C)C | 3193.7 | Semi standard non polar | 33892256 |
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| General References | - Tsikas D, Sawa M, Brunner G, Gutzki FM, Meyer HH, Frolich JC: Gas chromatography-mass spectrometry of cis-9,10-epoxyoctadecanoic acid (cis-EODA). I. Direct evidence for cis-EODA formation from oleic acid oxidation by liver microsomes and isolated hepatocytes. J Chromatogr B Analyt Technol Biomed Life Sci. 2003 Feb 5;784(2):351-65. [PubMed:12505783 ]
- 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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