| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2021-08-27 04:46:37 UTC |
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| Update Date | 2021-08-27 04:46:37 UTC |
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| HMDB ID | HMDB0242145 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | 2-Hydroxyoctadecanoic acid |
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| Description | 2-Hydroxyoctadecanoic acid, also known as a-hydroxystearate or alpha-hydroxystearic acid, 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. Based on a literature review a small amount of articles have been published on 2-Hydroxyoctadecanoic acid. |
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| Structure | CCCCCCCCCCCCCCCCC(O)C(O)=O InChI=1S/C18H36O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17(19)18(20)21/h17,19H,2-16H2,1H3,(H,20,21) |
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| Synonyms | | Value | Source |
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| 2-Hydroxystearic acid | ChEBI | | alpha-Hydroxyoctadecanoic acid | ChEBI | | alpha-Hydroxystearic acid | ChEBI | | 2-Hydroxystearate | Generator | | a-Hydroxyoctadecanoate | Generator | | a-Hydroxyoctadecanoic acid | Generator | | alpha-Hydroxyoctadecanoate | Generator | | Α-hydroxyoctadecanoate | Generator | | Α-hydroxyoctadecanoic acid | Generator | | a-Hydroxystearate | Generator | | a-Hydroxystearic acid | Generator | | alpha-Hydroxystearate | Generator | | Α-hydroxystearate | Generator | | Α-hydroxystearic acid | Generator | | 2-Hydroxyoctadecanoate | Generator | | DL-2-Hydroxy stearate | HMDB | | 2-Hydroxyoctadecanoic acid | HMDB |
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| Chemical Formula | C18H36O3 |
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| Average Molecular Weight | 300.483 |
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| Monoisotopic Molecular Weight | 300.266445019 |
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| IUPAC Name | 2-hydroxyoctadecanoic acid |
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| Traditional Name | α-hydroxystearic acid |
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| CAS Registry Number | Not Available |
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| SMILES | CCCCCCCCCCCCCCCCC(O)C(O)=O |
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| InChI Identifier | InChI=1S/C18H36O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17(19)18(20)21/h17,19H,2-16H2,1H3,(H,20,21) |
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| InChI Key | KIHBGTRZFAVZRV-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
- Alpha-hydroxy acid
- Hydroxy acid
- Monosaccharide
- Secondary alcohol
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Alcohol
- Hydrocarbon derivative
- Organic oxide
- Carbonyl group
- Organic oxygen compound
- Organooxygen compound
- 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 | 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 | 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. | 10.65 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 22.5492 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.47 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 3090.3 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 591.8 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 239.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 295.7 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 568.2 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 974.9 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 | 930.0 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 112.4 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 2087.9 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 618.7 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 | 1897.6 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 766.5 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 502.4 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 685.1 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 525.4 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 | 9.1 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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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 - 2-Hydroxyoctadecanoic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-06rx-6390000000-dc6055574df7458a3e36 | 2017-09-20 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 2-Hydroxyoctadecanoic acid GC-MS (2 TMS) - 70eV, Positive | splash10-004i-9423200000-6376cf4aba78ba257839 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 2-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 - 2-Hydroxyoctadecanoic acid 10V, Positive-QTOF | splash10-0f89-0093000000-2f8ef33bad8c777b2d7f | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 20V, Positive-QTOF | splash10-057i-3491000000-121f1dbb538618ddab45 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 40V, Positive-QTOF | splash10-052f-8930000000-a52f0254f6d8077d8b0c | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 10V, Negative-QTOF | splash10-0002-0090000000-f515fde945ac0a65e3d1 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 20V, Negative-QTOF | splash10-0kd1-0090000000-6b458f6ccdf110b9e5d1 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 40V, Negative-QTOF | splash10-05di-6090000000-0366448a4e8dac869c95 | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 10V, Positive-QTOF | splash10-0udi-3059000000-fece760ca2f818109e99 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 20V, Positive-QTOF | splash10-0a59-9531000000-fcb4708799e4d197140b | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 40V, Positive-QTOF | splash10-0a4l-9000000000-dae9b4648f722bf57839 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 10V, Negative-QTOF | splash10-0002-0090000000-f0b5fb24866d41ab9f4a | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 20V, Negative-QTOF | splash10-0002-1090000000-a10cc6e0109e8cc0e553 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Hydroxyoctadecanoic acid 40V, Negative-QTOF | splash10-0006-9000000000-86bd22c846752b71b79f | 2021-10-12 | Wishart Lab | View Spectrum |
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