| 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 22:17:16 UTC |
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| Update Date | 2021-09-14 14:57:12 UTC |
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| HMDB ID | HMDB0061661 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 9-hydroxyoctadecanoic acid |
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| Description | 9-hydroxyoctadecanoic acid, also known as 9-hydroxystearate or 18:0(9-OH), 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. 9-hydroxyoctadecanoic acid is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. |
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| Structure | CCCCCCCCCC(O)CCCCCCCC(O)=O InChI=1S/C18H36O3/c1-2-3-4-5-6-8-11-14-17(19)15-12-9-7-10-13-16-18(20)21/h17,19H,2-16H2,1H3,(H,20,21) |
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| Synonyms | | Value | Source |
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| 9-Hydroxystearic acid | ChEBI | | 9-Hydroxystearate | Generator | | 9-Hydroxyoctadecanoate | Generator | | DL-9-Hydroxy stearate | HMDB | | 9-Hydroxystearic acid, (R)-isomer | HMDB | | 9-Hydroxystearic acid, (S)-isomer | HMDB | | 18:0(9-OH) | HMDB | | 9-hydroxystearic acid | HMDB | | 9-DL-Hydroxystearic acid | HMDB | | 9-hydroxyoctadecanoic acid | SMPDB, ChEMBL |
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| Chemical Formula | C18H36O3 |
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| Average Molecular Weight | 300.4766 |
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| Monoisotopic Molecular Weight | 300.266445018 |
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| IUPAC Name | 9-hydroxyoctadecanoic acid |
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| Traditional Name | DL-9-hydroxy stearic acid |
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| CAS Registry Number | 3384-24-5 |
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| SMILES | CCCCCCCCCC(O)CCCCCCCC(O)=O |
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| InChI Identifier | InChI=1S/C18H36O3/c1-2-3-4-5-6-8-11-14-17(19)15-12-9-7-10-13-16-18(20)21/h17,19H,2-16H2,1H3,(H,20,21) |
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| InChI Key | RKHXDCVAPIMDMG-UHFFFAOYSA-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
- Hydroxy fatty acid
- Secondary alcohol
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Alcohol
- 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 | Not Available |
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| Role | 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 × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 10.47 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 19.386 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.51 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2890.3 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 454.0 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 219.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 212.2 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 515.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 866.6 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 | 740.1 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 122.0 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1798.9 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 561.0 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 | 1781.6 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 607.4 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 437.8 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 435.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 395.3 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 | 18.6 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 9-hydroxyoctadecanoic acid,1TMS,isomer #1 | CCCCCCCCCC(CCCCCCCC(=O)O)O[Si](C)(C)C | 2398.2 | Semi standard non polar | 33892256 | | 9-hydroxyoctadecanoic acid,1TMS,isomer #2 | CCCCCCCCCC(O)CCCCCCCC(=O)O[Si](C)(C)C | 2394.5 | Semi standard non polar | 33892256 | | 9-hydroxyoctadecanoic acid,2TMS,isomer #1 | CCCCCCCCCC(CCCCCCCC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 2431.9 | Semi standard non polar | 33892256 | | 9-hydroxyoctadecanoic acid,1TBDMS,isomer #1 | CCCCCCCCCC(CCCCCCCC(=O)O)O[Si](C)(C)C(C)(C)C | 2658.0 | Semi standard non polar | 33892256 | | 9-hydroxyoctadecanoic acid,1TBDMS,isomer #2 | CCCCCCCCCC(O)CCCCCCCC(=O)O[Si](C)(C)C(C)(C)C | 2652.2 | Semi standard non polar | 33892256 | | 9-hydroxyoctadecanoic acid,2TBDMS,isomer #1 | CCCCCCCCCC(CCCCCCCC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 2919.4 | 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 - 9-hydroxyoctadecanoic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0036-5960000000-67d4a3ee725d98ea5079 | 2017-09-20 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 9-hydroxyoctadecanoic acid GC-MS (2 TMS) - 70eV, Positive | splash10-004i-9221100000-40291ebb4fcd287b4f94 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 9-hydroxyoctadecanoic acid 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 - 9-hydroxyoctadecanoic acid 10V, Positive-QTOF | splash10-001i-0091000000-a8b75bfa492bb7b7a6bb | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 20V, Positive-QTOF | splash10-00lr-4590000000-707498b5a5d0782fba8a | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 40V, Positive-QTOF | splash10-052f-9310000000-d98636c703945e990ce5 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 10V, Negative-QTOF | splash10-0002-0090000000-9ed230f17ba467cf5117 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 20V, Negative-QTOF | splash10-001j-0190000000-ad303d7daac63b55897e | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 40V, Negative-QTOF | splash10-0a4l-9720000000-2a81d53dd37fec6d66c6 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 10V, Positive-QTOF | splash10-001i-1192000000-d0d69d9ec9ab6dff6a82 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 20V, Positive-QTOF | splash10-05o9-8791000000-82f26033195314948cd3 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 40V, Positive-QTOF | splash10-0a4l-9100000000-0733a826b61d567db382 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 10V, Negative-QTOF | splash10-0002-0090000000-e9b39aa68d7e6aa56e30 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 20V, Negative-QTOF | splash10-000t-0090000000-64977f103ae09315cd25 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 9-hydroxyoctadecanoic acid 40V, Negative-QTOF | splash10-002f-6690000000-3b12976292afd5ad2c2a | 2021-09-24 | Wishart Lab | View Spectrum |
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