| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2006-10-19 12:44:39 UTC |
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| Update Date | 2022-03-07 02:49:25 UTC |
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| HMDB ID | HMDB0005050 |
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| Secondary Accession Numbers | - HMDB0004683
- HMDB04683
- HMDB05050
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| Metabolite Identification |
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| Common Name | 15H-11,12-EETA |
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| Description | 15H-11,12-EETA is an epoxyeicosatrienoic acid (EET). The role of EETs in regulation of the cerebral circulation has become more important, since it was realized that EETs are produced in another specialized cell type of the brain, the astrocytes. It has become evident that EETs released from astrocytes may mediate cerebral functional hyperemia. Molecular and pharmacological evidence hve shown that neurotransmitter release and spillover onto astrocytes can generate EETs. Since these EETs may reach the vasculature via astrocyte foot-processes, they have the same potential as their endothelial counterparts to hyperpolarize and dilate cerebral vessels. P450 enzymes contain heme in their catalytic domain and nitric oxide (NO) appears to bind to these heme moieties and block formation of P450 products, including EETs. Thus, there appears to be crosstalk between P450 enzymes and NO/NO synthase. The role of fatty acid metabolites and cerebral blood flow becomes even more complex in light of data demonstrating that cyclooxygenase products can act as substrates for P450 enzymes. (PMID: 17494091 , 17468203 , 17434916 , 17406062 , 17361113 , 15581597 , 11413051 , 10519554 , 11893556 ). |
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| Structure | CCCCC[C@H](O)\C=C\C1OC1C\C=C/C\C=C/CCCC(O)=O InChI=1S/C20H32O4/c1-2-3-9-12-17(21)15-16-19-18(24-19)13-10-7-5-4-6-8-11-14-20(22)23/h4,6-7,10,15-19,21H,2-3,5,8-9,11-14H2,1H3,(H,22,23)/b6-4-,10-7-,16-15+/t17-,18?,19?/m0/s1 |
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| Synonyms | | Value | Source |
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| 15-Hydroxy-11,12-epoxyeicosatrienoic acid | Kegg | | (5Z,8Z,13E)-(15S)-11,12-Epoxy-15-hydroxyeicosa-5,8,13-trienoic acid | Kegg | | (5Z,8Z,13E)-(15S)-11,12-Epoxy-15-hydroxyicosa-5,8,13-trienoic acid | Kegg | | 15-Hydroxy-11,12-epoxyeicosatrienoate | Generator | | (5Z,8Z,13E)-(15S)-11,12-Epoxy-15-hydroxyeicosa-5,8,13-trienoate | Generator | | (5Z,8Z,13E)-(15S)-11,12-Epoxy-15-hydroxyicosa-5,8,13-trienoate | Generator | | (+/-)11,12-ep-15(S)-hetre | HMDB | | 11,12-Epoxy-15S-hydroxy-5Z,8Z,13E-eicosatrienoate | HMDB | | 11,12-Epoxy-15S-hydroxy-5Z,8Z,13E-eicosatrienoic acid | HMDB | | 15-H-11,12-EETA | HMDB |
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| Chemical Formula | C20H32O4 |
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| Average Molecular Weight | 336.4657 |
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| Monoisotopic Molecular Weight | 336.230059512 |
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| IUPAC Name | (5Z,8Z)-10-{3-[(1E,3S)-3-hydroxyoct-1-en-1-yl]oxiran-2-yl}deca-5,8-dienoic acid |
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| Traditional Name | (5Z,8Z)-10-{3-[(1E,3S)-3-hydroxyoct-1-en-1-yl]oxiran-2-yl}deca-5,8-dienoic acid |
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| CAS Registry Number | 877878-78-9 |
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| SMILES | CCCCC[C@H](O)\C=C\C1OC1C\C=C/C\C=C/CCCC(O)=O |
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| InChI Identifier | InChI=1S/C20H32O4/c1-2-3-9-12-17(21)15-16-19-18(24-19)13-10-7-5-4-6-8-11-14-20(22)23/h4,6-7,10,15-19,21H,2-3,5,8-9,11-14H2,1H3,(H,22,23)/b6-4-,10-7-,16-15+/t17-,18?,19?/m0/s1 |
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| InChI Key | GELFSVXLSDZDHE-YZSNCDGGSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as medium-chain hydroxy acids and derivatives. These are hydroxy acids with a 6 to 12 carbon atoms long side chain. |
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| Kingdom | Organic compounds |
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| Super Class | Organic acids and derivatives |
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| Class | Hydroxy acids and derivatives |
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| Sub Class | Medium-chain hydroxy acids and derivatives |
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| Direct Parent | Medium-chain hydroxy acids and derivatives |
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| Alternative Parents | |
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| Substituents | - Medium-chain hydroxy acid
- Medium-chain fatty acid
- Epoxy fatty acid
- Heterocyclic fatty acid
- Hydroxy fatty acid
- Fatty acyl
- Fatty acid
- Unsaturated fatty acid
- Secondary alcohol
- Carboxylic acid derivative
- Carboxylic acid
- Dialkyl ether
- Oxirane
- Ether
- Oxacycle
- Monocarboxylic acid or derivatives
- Organoheterocyclic compound
- Organic oxide
- Hydrocarbon derivative
- Carbonyl group
- Alcohol
- Organooxygen compound
- 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 | 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 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 × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. | 7.38 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 17.4001 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 0.94 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 33.7 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2974.5 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 301.9 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 187.9 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 211.8 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 458.9 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 826.9 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 | 530.8 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 122.2 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1723.7 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 598.3 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 | 1650.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 578.8 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 450.3 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 329.8 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 359.9 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 | 8.4 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 15H-11,12-EETA,1TMS,isomer #1 | CCCCC[C@@H](/C=C/C1OC1C/C=C\C/C=C\CCCC(=O)O)O[Si](C)(C)C | 2754.8 | Semi standard non polar | 33892256 | | 15H-11,12-EETA,1TMS,isomer #2 | CCCCC[C@H](O)/C=C/C1OC1C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C | 2659.2 | Semi standard non polar | 33892256 | | 15H-11,12-EETA,2TMS,isomer #1 | CCCCC[C@@H](/C=C/C1OC1C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2706.3 | Semi standard non polar | 33892256 | | 15H-11,12-EETA,1TBDMS,isomer #1 | CCCCC[C@@H](/C=C/C1OC1C/C=C\C/C=C\CCCC(=O)O)O[Si](C)(C)C(C)(C)C | 2996.7 | Semi standard non polar | 33892256 | | 15H-11,12-EETA,1TBDMS,isomer #2 | CCCCC[C@H](O)/C=C/C1OC1C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C(C)(C)C | 2910.3 | Semi standard non polar | 33892256 | | 15H-11,12-EETA,2TBDMS,isomer #1 | CCCCC[C@@H](/C=C/C1OC1C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 3211.0 | Semi standard non polar | 33892256 |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - 15H-11,12-EETA GC-MS (Non-derivatized) - 70eV, Positive | splash10-014l-9882000000-3542c00b22d7a628f998 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 15H-11,12-EETA GC-MS (2 TMS) - 70eV, Positive | splash10-00vr-9283200000-71f2061c2c545719c5e4 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 15H-11,12-EETA GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 15H-11,12-EETA GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 10V, Positive-QTOF | splash10-014i-0119000000-6669e73fed08fa686b6e | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 20V, Positive-QTOF | splash10-0g6r-2923000000-e1ebfd6b5b07ef684222 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 40V, Positive-QTOF | splash10-0a4u-9820000000-9eb24537f07886109c99 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 10V, Negative-QTOF | splash10-000i-0019000000-5d21765fe08515872649 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 20V, Negative-QTOF | splash10-014r-2469000000-e74f5db2ba7aafe7ac69 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 40V, Negative-QTOF | splash10-052f-9600000000-5f3ccdc5aeb81ec5bee7 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 10V, Negative-QTOF | splash10-00kr-0109000000-a81cf651f2bb9ef3b6b6 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 20V, Negative-QTOF | splash10-00kr-0459000000-b65496bff68de53bdb69 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 40V, Negative-QTOF | splash10-052f-8941000000-395c49b790cb96398dc2 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 10V, Positive-QTOF | splash10-0gb9-0219000000-4a6493bd003dca0bbd4a | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 20V, Positive-QTOF | splash10-0uxr-5519000000-1d89d8ca3789431e87c2 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 15H-11,12-EETA 40V, Positive-QTOF | splash10-014l-9600000000-db7302e43cd74c6250d3 | 2021-09-23 | Wishart Lab | View Spectrum |
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